Showing posts with label treats. Show all posts
Showing posts with label treats. Show all posts

Wednesday, June 10, 2009

Do puppies need supplements?

Most important key to growth and development of a puppy is without question proper nutrition. According to what we see at the store, a remarkably high percentage of puppy owners, first timers as well as experienced dog parents is extremely careful when it comes to feeding their puppy the right diet and definitely acknowledges that fact. I wonder sometimes why, strange enough not the same percentage of adult dog owners is nearly as sensitive and picky about their dogs’ food. I guess it must have to do with parental instincts, a feeling that a baby or kid just has different need and needs more of a parent’s care than an adult.

And as much as these puppy owners are concerned about the right food, as often they wonder if it is necessary to supplement the puppy food. The variety of supplements for all life stages being offered these days has become quite impressive and picking the right ones is almost as much a science as choosing the right food. There is also a great number of supplements specifically aimed at and formulated for puppies. So say the labels, whether this is true or not I would like to discuss another time. Reason why I make this statement is that in a press release I just recently read a warning coming from
www.ConsumerLab.com: “Problems with Multi vitamins and Vitamin Water: ConsumerLab.com Uncovers Defects in Over 30% of Supplements Selected for Testing and Finds Most Children's Multivitamins Exceed Tolerable Limits “ Aside from criticizing people products, the release also include a paragraph about “Problems with Pet Supplements: In addition to supplements for people, ConsumerLab.com selected two pet supplements for testing, but neither passed. One contained only 46% of the vitamin A and 54.7% of its claimed minimum amount of calcium. Another was contaminated with 6.45 mcg of lead per tablet. This is several times higher than the amount of lead (1.41 mcg) ConsumerLab.com found to be in this same product in 2007. Contamination limits for dogs are not well defined, but, as reference, the FDA notes that children should not be exposed to more than 6 mcg of lead per day and, as noted above, California requires warning labels on supplements for human use that contain over 0.5 mcg of lead per day. “

Therefore, a healthy portion of skepticism may be in order. However, for today and now, let’s just assume the supplements, especially the high quality ones are what they promise to be and to do. The question here is, are they really necessary? Generally opinions among researchers, vets, breeders, pet owners and members of the pet product industry vary widely, just as they do with everything else.

My typical answer usually is simple: If you feed your healthy puppy a high quality food such as the ones we offer at our store, you don’t need to supplement. Of course, as always, double check with your vet and see what he/she has to say. Sometimes they may recommend supplementing with products supporting normal health like fatty acids or probiotics. Keep in mind, every puppy is different and individual needs may vary.

Sometimes it may be necessary to supplement for short periods of time. One example comes to my mind: When the puppy joins the family for the first time it may be too excited to eat correctly, so it may need a little support there. But that is seldom the case. I have yet to see a puppy, which doesn’t get excited about food and gets so side tracked by its surroundings that it doesn’t satisfy its seemingly endless hunger. After all every puppy is a fast growing body and that fast growth needs a lot of fuel.

Actually I could finish right here. You got your answer: Feed the right diet and you don’t need to supplement. But that would be too easy. There are always those of you who do for what ever the reasons may be not feed the best available food or for example feed diets approved for all life stages. In those cases you have different needs. What is to be included in the “right” puppy food to make sure that it does not to be supplemented?

If you recall any of this blog’s previous comments about feeding a puppy you will remember fatty acids, like Omega-3 to provide DHA and EPA (docosahaexenoic and eicosapentaenic acid) for enhanced mental functions, vitamins to build a strong immune system and minerals to support proper skeletal growth. This is just to name a few.

I came up with an idea: Looking for details as to what should be the ultimate supplement? One supplement comes to my mind, which I definitely call the ultimate. You guessed right: Mother’s milk. This is the super premium fuel for all of the youngster’s needs and optimal growth and development. But what makes it so valuable?

It contains proteins with the appropriate amino acid composition needed for growth. These proteins include colostrum which provides immunoglobulins important in building a strong immune system and vitamins, minerals, hormones, complex sugars and growth factors to promote proper development.

Fats included in mother’s milk help to increase resident time in the stomach to optimize digestion of proteins and other nutrients. Healthy fats also make puppies less likely to develop allergies. The fats in mother’s milk also include medium chain triglycerides (MCT). Because bile and enzyme secretions from the liver and pancreas are not fully functional during the first few weeks of a puppy’s life it is important that the fats ingested are easily digestible. MCT require less bile and enzyme for digestion and are transported from the stomach and small intestine to the liver to be utilized for energy more rapidly than other fats, which must pass through the lymphatic system. MCT’s also increase the absorption of amino acids, fat soluble vitamins and some electrolytes.

Then there are omega 3 fatty acids, which are important for the formation of cell membranes, proper enzyme function, development of brain, eye and nerve cells, healthy liver function and energy and protein production.

Lecithin is necessary for the formation and maintenance of cell membranes, nerve transmission and normal brain and liver functions plus additionally it increases resistance to disease.

And finally, probiotics or intestinal micro organisms play a vital role digestion and overall health by improving nutrient availability, synthesizing enzymes and vitamins, enhancing the immune system and regulating bowel function.

Best of all, it is available as a supplement, typically in powder form to be sprinkled onto the regular food or mixed with water into a liquid formula.

Just as important as the question do you need supplements, is the question how much of them. Be careful, some vitamins and minerals can be dangerous if given in too high of a dose. Example: Calcium if given excessively or at the wrong ratio with phosphorus can lead to musculoskeletal disorders, especially in large breed puppies.

My last word of advice to those of you who believe for economical reasons they cannot afford feeding their puppies a higher priced, high quality food: Do the math and add up your lower priced, low quality food and the dollars you will have to spend on supplements: The bottom line is most likely that you are better off feeding the better food to begin with. And this does not even consider the intangible risk of possibly having health issues with your puppy down the road at later ages.

Friday, May 22, 2009

Food as a Miracle Medicine?

Note: The following was written to reflect upon human needs, however, much of it also applies to our companion animals. Much of the facts described below are based on human studies. Dogs share 99% of the same DNA as humans. So, it should be no surprise why much of human nutrition research is relevant and beneficial for dogs as well.

“Nothing you can do for your health and survival is more important than consistently eating foods packed with disease fighting antioxidants”.

Eat Your Veggies!
For decades now, the National Cancer Institute, National Institute of Health, the American Medical Association, the American Academy of Pediatrics and mom have been urging us to eat plenty of servings of fruits and vegetables a day. Research continues to show that people who have high intake of a variety of fruits and vegetables (at least 5 per day) are much less likely to develop certain types of cancer than people who have a low intake (2 servings or less). A majority of health professionals believe that there is a clear connection between a diet high in fruits and vegetables and a low risk of chronic disease.

Harvard researchers studying nearly 80,000 women and 40,000 men found that people who ate five servings of fruits and vegetables every day had 30% lower risk of stroke.

There is compelling evidence that a diet rich in fruits and vegetables can lower the risk of heart disease. In fact, one of the findings of a Harvard study concluded that increasing fruits and vegetable intake by as little as one serving daily can have a real impact on heart disease risk.
Top Fruit and Vegetable Cancer Fighters for Humans (from Food Your Miracle Medicine):
Garlic, cabbage, licorice, ginger, carrots, celery, tea, tumeric, flax, brown rice, peppers, broccoli, oats, mint, berries, cucumber, thyme, oregano, barley, citrus fruits, whole wheat, tomatoes

Vitamins

Vitamin A (beta-carotene) is necessary to maintain a healthy immune system and develop resistance to infection. It stimulates several immune system responses including enhancing the function of white blood cells. Humans with insufficient intake of this vitamin often experience increased susceptibility to infections.
Vitamin A also protects the body from cardiovascular disease and stroke. Beta-carotene protects the heart and cardiovascular system and promotes wound healing. As an antioxidant, beta-carotene has been shown to inhibit oxidative damage due to cholesterol and protect against atherosclerotic plaque formation. High amounts of beta-carotene in diets have been shown to reduce the risk of breast and cervical cancer in women as well as prostate cancer in men. Vitamin A promotes the healthy surface lining of the eyes and the respiratory, urinary and intestinal tracts. When those linings break down, it becomes easier for bacteria to enter and cause infection.
Foods rich in vitamin A include: Carrots, spinach, kale, red bell peppers, romaine lettuce, sweet potato, cantaloupe, squash, apricots, broccoli, tomato, basil, and asparagus.

Vitamin E has sometimes been called the lightning rod of the cell, allowing reactive molecules to strike the cell, like lightning, without damaging it. Vitamin E works together with a group of other nutrients, selenium, vitamin B3 and vitamin C, by traveling throughout the body neutralizing free radicals that would otherwise damage cell structures. By protecting these cellular components, vitamin E has significant anti inflammatory effects that result in the reduction of symptoms in chronic conditions such as arthritis, cancer and cataracts.
Vitamin E plays a role in the prevention of cardiovascular disease by preventing free radicals form oxidizing cholesterol. Only after cholesterol is oxidized, is it able to adhere to blood vessels, leading to blocked arteries. Studies show that people who get a good amount of vitamin E in their diet are at a much lower risk of dying of a heart attack than people whose dietary intake is marginal or inadequate. This may be due in part to vitamin E’s ability to prevent the formation of blood clots. Research has shown a reduction in the risk of bladder and prostate cancers in humans with a diet high in vitamin E. Vitamin E and omega fatty acids are vital for healthy skin and coat in dogs. A deficiency in vitamin E is associated with digestive system problems in humans where other nutrients are poorly absorbed from the digestive tract leading to pancreatic, gallbladder and liver diseases. An estimated 75% of adults are not meeting the required minimum RDA for vitamin E.
Foods rich in vitamin E include: Mustard greens, sunflower seeds, spinach, almonds, olives, kiwifruit, blueberries, kale, papaya, brussel sprouts, tomato and broccoli.

Vitamin C helps the body cells grow and stay healthy, including those in bones, gums, teeth, ligaments, and blood vessels. It also helps the body’s response to infection and stress. Vitamin C serves as a protective substance in the body. The immune system relies on a wide array of mechanisms to help protect the body from infection, and vitamin C is important in the normal function of the immune system. Cardiovascular disease, cancers, joint diseases and poor wound healing are all associated with vitamin C deficiency.
Foods rich in vitamin C: Papaya, parsley, red bell peppers, broccoli, strawberries, oranges, cantaloupe, kiwifruit, lemons, grapefruit, sweet potato, romaine lettuce, and brussel sprouts.

B Vitamins (Folate, B6, B12): Folate plays a key role in building DNA. There have been a number of studies linking high amounts of the vitamin folate with lowered colon and breast cancer risk.
Folate, B6 and B12 have been shown to reduce homocysteine levels in the blood. High levels of homocysteine contribute to the artery-clogging process of atherosclerosis. Elevated homocysteine levels are associated with increased risks of heart disease and stroke.
Foods rich in B vitamins include: Spinach, collard greens, whole grains.

Phytonutrients: Recent photonutrient research is probably the most exciting advancement since the initial discovery of vitamins and minerals decades ago. More than 900 different phytochemicals have been found in plant foods, such as fruits, vegetables, grains, nuts and seeds. These compounds have separate effects beyond the "macronutrients" we commonly know such as carbohydrates, proteins, fiber and vitamins. Colorful fruits and vegetables contain hundreds of compounds that work together to promote health and prevent disease because they can have anti oxidant, anti inflammatory, anti viral and anti bacterial effects in the body. There are three classes or families of phytonutrients.

Carotenoids are a class of substances found in plants that generally give it brilliant colors – yellow, deep green, red, orange. Carotenoids are plant pigments which protect the plant cell from being destroyed during the process of photosynthesis by acting as potent antioxidants by neutralizing free radicals. Cartenoids protect the body by decreasing the risk of heart disease, stroke, blindness and certain types of cancer. They may also help slow the aging process. Cartenoids are also believed to enhance the function of the immune system. Some carotenoids have been shown to have antibiotic properties by regulating the function of unwanted bacteria and viruses. The Institute of Medicine encourages consumption of cartenoid-rich fruits and vegetables for their health-promoting benefits. Sources of carotenoids include: Green fruits and vegetables such as kiwi fruit, spinach and lettuce; yellow/red fruits and vegetables such as sweet potatoes, pumpkin and tomatoes; yellow/orange fruits and vegetables such as papaya, oranges and squashes.

Polyphenols may reduce the risk of heart disease and certain types of cancer. Phenols can be found in green and black tea, currants, berries, apples, kiwifruit and tomatoes.

Flavonoids are another large family of phytonutrients found in fruits and vegetables. Some of the better known flavonoids include anthocyanins found in brightly colored fruits and vegetables such as berries, cherries, plums, red grapes, resveratrol and quercetin. Flavonoids have been shown to function as a potent antioxidant and may reduce the risk of atherosclerosis. Atherosclerosis is a primary cause of cardiovascular disease. Flavonoids are found in organs, grapefruit, berries, apples, red grapes, red wine, broccoli and green tea.

Understanding Antioxidants
The health community is recognizing antioxidants as premier disease fighters. Everyday the cells in our body fight against free radicals, unstable oxygen molecules that can instigate cancer, heart disease, cause plaque to build up in arteries and contribute to aging. As we process food for energy, our bodies produce free radicals. Free radicals can damage DNA, the inside of the artery wall, proteins in our eyes and just about any tissue substance on our body. We aren't defenseless against these destruction compounds; we extract free radical fighters called antioxidants from our foods. Antioxidants appear to prevent or repair damage caused to the body’s cells by harmful free radicals. Anti oxidants help boost your immune system and increase your resistance to infection. Fruits and vegetables contains hundred of antioxidants.
Our immune system is what fights the onslaught of potential free radical initiators, second hand smoke, bacteria, viruses, pesticides, ozone, chemicals… It is estimated that our DNA gets “attacked” thousands of times each day by toxins and pollutants which are potential cancer initiators. Antioxidants are nutrients which act to sequester the attacks. They work as a team, meaning that you need a combination of substances rather than excessive amounts of single nutrient.

By keeping cells healthy and preventing damage to DNA, many scientists believe antioxidants may impart some protection against certain diseases such as cancer, cardiovascular disease and cataracts. As we age our immune systems decline, but antioxidants keep your immune system healthy and hardy. Using antioxidants helps slow down and prevent free radical damage that speeds up aging. USDA scientists at the Human Nutrition Research Center on Aging have been finding promising results associated with diets high in antioxidants and other phytonutrients. Slowing down the aging process is no longer a mystery. The best results in research studies have consistently shown that by giving animals low-calorie diets high in antioxidant nutrients, their life span increases up to 40% longer and they are more active during their lives.

Protein is a vital structural and working material of all cells. The most important job for protein is to rebuild cells.

Essential Fatty Acids (EFA): Some believe that the #1 nutritional deficiency in American families is healthy fats. Fats build the brain, efficiently use vitamins, build healthy skin and provide energy.
There are two essential fatty acids in human nutrition: Alpha-linolenic acid (ALA), an omega-3 fatty acid, and linoleic acid (LA), an omega-6 fatty acid. EFA are essential to maintain the barrier of the skin and are involved in cholesterol metabolism. Recent studies have encouraged an emphasis of omega-3 fatty acids because the typical American diet over-consumes omega-6. People in industrialized countries eat up to 30 times more omega-6 than omega-3 fatty acids, resulting in a relative deficiency of omega-3 fats. Omega-6 metabolic products are formed in excessive amounts causing allergic and inflammatory disorders and make the body more prone to heart attacks, stroke and cancer. Omega-3 fatty acids have many biologic effects that make them useful in preventing and managing chronic conditions such as type 2 diabetes, kidney disease, arthritis, heart disease and certain types of cancer. Hundreds of studies have shown that diets rich in omega-3 fatty acids decrease the risk of heart attacks. ALA dampens inflammatory reactions by blocking the formation of compounds that promote inflammation (e.g., cytokines, prostaglandins) and injury artery walls. Inflammation is a feature common in most chronic diseases, including arthrosclerosis, arthritis and some cancers such as breast, colon and prostate.

According to some studies, many common mental disorders, such as depression and attention deficit hyperactive disorder (ADHD), anxiety, may be triggered by deficiencies of omega-3 fatty acids and/or B vitamins. Moreover, studies of children in the UK taking omega-3 supplements found that 40% of the children showed some clear improvement in school performance. The dramatic effect on the children may hinge on several functions of fatty acids in the brain. It is thought that omega-3s may it easier for signals to cross the gap between brain cells.
Contribution by
Thrive! Foods

Saturday, May 2, 2009

Promoting mental, dental and overall physical health with chew treats

Chews provide mental and physical stimulation for all dogs, and are an important support to dental health. Learn which chews are best, and how to minimize dental expenses.
Dogs, especially puppies need to chew. If you don’t provide good chews for them, they will find their own, often your furniture! Chew treats provide pleasure, mental and physical exercise, and help make a dog who is easy to live with.
Appropriate chew treats help keep dogs’ gums and teeth healthy. Canine dental work has become a “routine” maintenance procedure, one that requires a general anesthetic. Surgery is expensive and never without risk. Healthy dogs who eat a fresh, meat and vegetable diet often have much cleaner teeth and better gums than those eating grain-based dry food, and seldom need dental work. Chews and stuffed toys, some designed for dental stimulation, can provide needed exercise for gums and teeth and aid in plaque removal.
For some dogs, chews are not an option. Poorly aligned teeth, may break when dogs chew hard objects. Some dogs have thin tooth enamel, easily worn away. Consult your veterinarian about the safety of hard chews for your dog. If they can’t chew, you may need to brush their teeth on a daily basis. This small chore may save your dog the risk and you the expense of veterinary dental cleaning.
Rawhide: Don’t use it! Rawhide chews are high in fat, add no beneficial nutrients, and can cause blockages in the stomach or intestines, a life threatening event. Any form of rawhide can be irritating: We have known many dogs with chronic diarrhea, diagnosed with food issues, who actually had a problem with rawhide.
Green treats promoted for dental health or just for chewing often have a gluten base. Gluten is one of the most common allergens for dogs. It has no place in a dog’s diet.
Other cooked or smoked body parts require careful evaluation for each individual. Chews like tracheas and tendons are digestible and add beneficial cartilage to the diet. However an enthusiastic large dog can choke on them. Discard pieces that are small enough to swallow. Be careful of hoofs: Dogs can break a tooth on them. We do not recommend pigs’ ears because they are extremely high in fat.
Bones provide a natural source of glucosamine, chondroitin, collagen, and calcium for healthier joints and connective tissue. Bones can sometimes be excellent, and sometimes a danger. Know your chewers! Whether the bones are raw or cooked, heavy chewers can destroy a large knucklebone in a short time, and this is a heavy digestive load. Dogs raised on bones seldom overdo chewing (this may not apply to the average Labrador!), but should be supervised closely until you are confident that they are safe with the bones you give them.
Bones cooked at high temperatures may splinter. Sterilized and cooked bones may be fine for a light chewer who will gradually wear the bone away. Slow-roasted bones rarely splinter.
Raw bones are best. Small dogs do well with slices of femur, the round bones, which may be cut to under an inch or up to a foot. Beef knucklebones are great for larger dogs, and some smaller ones. Fresh bones are a rich source of good fats, but they provide a lot of calories, and
If your dog doesn’t need the calories, remove as much fat from them as you can. Start slow, with a 5 or 10 minute chewing time allowed. Dogs who destroy what they are given rapidly need to move up a couple of notches in durability. Raw bones may be stored in the refrigerator or freezer, but thaw them out before use: ice is very hard!
Promote mental health and agility. Treat balls and food-stuffed toys provide an interesting challenge for your dogs with no side effects! Few dogs can destroy the all purpose Kong, These can be stuffed with almost anything: a few crunchy bits, a piece of cheese, and a smear of peanut butter can keep dogs working for a long time. Kongs can be left safely with most dogs when you leave the house, and can help a dog through the difficult first hour you are gone.
Treat balls stimulate the brain. They work best when stuffed with tiny crunchy treats. If you feed dry food, use some of the food for stuffing the ball, and watch your dog roll, bounce or shake the ball to get at the food!
There are many new choices in both these categories. These toys take a beating, so look for durability.
Supervise all chew activities carefully.
Good chews provide mental and physical stimulation, entertain dogs without your active participation, and help keep the teeth and gums clean and healthy. They add to the quality of your dog’s days, helping them live longer, more satisfying lives.
Contibuted by Steve Brown and Beth Taylor, co-authors of
"See Spot Live Longer: How to help your dog live a longer and healthier life."

Saturday, April 18, 2009

Interpreting Labels of Special Use Nutrition Products

Today, in conclusion to the comments Quality assurances on pet food labels – Realistic or marketing as usual? and When a Pet Food is a "Drug" we are going to take a closer look at which rules and regulations pet food manufacturers have to follow when making claims for so called "special use foods".

Treats and Chews
Snacks and treats for pets are implicitly intended to be offered on an occasional basis, and by no means should be fed as the mainstay of the diet. Although pet treats must meet all the other FDA and state regulations for labeling of pet foods, they are exempt from the need to include an AAFCO nutritional adequacy statement. "Biscuits" are not exempt, unless they are identified as a "snack" or "treat" as well. Regardless, some treats and biscuits are formulated to be nutritionally complete, and some are not.

Dog chews made from rawhide, bone or other animal materials or parts (for example, pig ears) are still considered "food" under FDA law, since they are comprised of materials that are consumable by the pet. As long as the label for the chew does not include any reference to nutritional value (such as "high protein"), it may not have to follow the AAFCO pet food regulations. Thus, many labels for chews may not have a guaranteed analysis or follow the AAFCO rules for product names. However, they should still bear the information required under FDA regulations, such as the net quantity statement, the manufacturer's name and address, and the ingredient list (if it contains more than one ingredient or the single ingredient is not declared in the product name). For products sold in bulk, the required information should appear in a placard on the bin or container.

Health Claims
Many of the products intended for special uses involve the dietary management of a disease or condition. Recent laws have affected the way FDA regulates these types of products for human consumption. The Nutrition Labeling and Education Act (NLEA) provides for specified "health claims" (claims that state that consumption of a food may help in the reduction of risk for disease) to appear on human food product labels. The Dietary Supplement Health and Education Act (DSHEA) has allowed for the boom of dietary supplements available for human use, many which include claims of "nutritional support" for specific organs or body functions. Since pet foods follow many similar marketing trends to foods for human consumption, it is not surprising that many pet food and supplement labels also bear these types of claims. However, since the rules for pet foods are very different, some of these claims are not legally allowed.

The Federal Food, Drug, and Cosmetic Act (FFDCA) defines "food" as an article used for food or drink for man or other animals. On the other hand, a "drug" is, in part, an article intended for use in the diagnosis, cure, mitigation, treatment or prevention of disease, or an article (other than food) intended to affect the structure or function of the body of man or other animals. "Food," in the parenthetical "other than food," has been further interpreted by the courts as a substance that provides "taste, aroma, or nutritive value." If a food affects the structure or function of the body, it does so by these properties (for example, a food may provide nutrients such as calcium for proper bone structure, or taurine for healthy heart function in cats). However, if a product affects the structure or function of the body apart from its nutritive value, such as urine acidification or improvement in joint function, it may be considered a drug.

The legal definitions of food and drug become intertwined when a food label bears a claim that consumption of the product will treat, prevent, or otherwise affect a disease or condition, or to affect the structure or function of the body in a manner distinct from what would normally be described as from its "nutritive value." Also, implied drug claims may include a discussion of a medical condition, reference to an equivalent drug product, or the presence of medical symbols. Such claims establish an intent to offer the product as a drug (i.e., it makes a "drug claim"). Furthermore, since the product was not subject to the normal premarket clearance mechanism to demonstrate safety and efficacy as required for drugs, it is unsafe by definition. Pet food products with labels bearing drug claims are subject to regulation by CVM as drugs as well as foods. A pet food company must then remove these claims to restore its regulatory status to simply food.

FDA's authority to prohibit drug claims extends beyond what is commonly considered the product "label." The FFDCA defines "labeling" as all labels and other written, printed or graphic matter upon any article or any of its containers or wrappers, or accompanying such article. Thus, brochures, flyers, signs or similar promotional material found at the point of sale may be labeling and subject to the same laws. Also, although food advertising is not regulated by the FDA, but by the Federal Trade Commission, FDA does have some authority. Advertisements or even verbal representations that establish the "intended use" of the product can be used as relevant evidence that it is a drug.

FLUTD Products
CVM has incorporated some of the philosophy of NLEA in its policies in order to allow meaningful health-related information on pet food labels. Much of CVM's efforts to date have focused on label claims related to cat foods and the prevention of Feline Lower Urinary Tract Disease (FLUTD). Although FLUTD occurs in less than 1% of cats, it is a concern for cat owners. The exact causes of FLUTD are still unclear, and a number of dietary and non-dietary factors may be involved.

Label claims to prevent or reduce the risk of FLUTD, cystitis, urinary problems or similar verbiage are drug claims and are not allowed under the law. However, in an effort to get some meaningful health-related information to the consumer, CVM is exercising regulatory discretion in not taking action against products that bear claims akin to "reduce urine pH to help maintain urinary tract health" or to have low magnesium levels. With respect to urine pH claims, this discretion is contingent upon adequate controlled studies to demonstrate that consumption of the product results in an appropriately acidic urine. Since too much acidification of the urine can also result in serious health problems, data to demonstrate safety of the product are reviewed as well. With respect to dietary magnesium levels, the "cut-off" criteria to support a "low magnesium" claim are less than 0.12% on a dry matter basis and less than 25 mg per 100 kilocalories of metabolizable energy. Companies submit the results of proximate analyses (including crude protein, crude fat, crude fiber, moisture, and ash) and magnesium analyses of a number of production runs of the product. Demonstration that the product formulation consistently meets the cut-off criteria supports the label claim. The estimation of magnesium content as calculated by using guaranteed analysis values on the product label must also meet the criteria.

In order to be most useful in reducing the risk of FLUTD, products must also be used correctly. If the product is mixed with other foods or "meal fed" (offered for only a short period of time per day), it might not be able to maintain the proper urine pH to be beneficial. Thus, feeding directions are added to recommend the product be fed alone and to be made available throughout the day. Also, the nutritional adequacy statement on the label must be for adult maintenance only. This disease occurs primarily in young to middle-aged adults, and the most serious problems occur in males. Since the safety of these products for kittens and pregnant or nursing queens has not been established, it is recommended not to use these products for these life stages.

Another FLUTD-related claim, "low ash," is not allowed on cat food labels. The current scientific consensus is that ash per se is not related to the incidence of FLUTD. There are no valid reasons to reference ash on the product label (other than in the guaranteed analysis) except in regard to this outdated theory. Thus, "low ash" or similar claims, even without reference to FLUTD, are inherently false and misleading, which render the product misbranded and subject to regulatory action.

Weight Control Products
Obesity in pets is probably the most common nutritional problem today. Reduced calorie products have been on the market for many years. However, following the lead of marketing niches for human foods, more and more "lite" pet food products are now available. FDA regulations promulgated under the NLEA established the rules for human products labeled as "lite," "low calorie" or similar terms, but do not apply to pet foods.

Recent AAFCO regulations governing the use of terms such as "lite" became effective this year. Under the new rules, the term "lite" must be based on a standard reference for all products, regardless of manufacturer. For example, a "lite" or "low calorie" dry dog food cannot contain more than 3100 kilocalories per kilogram (kcal/kg), while a similarly named dry cat food cannot contain more than 3250 kcal/kg. Canned foods contain much more moisture, so the maximum allowable calories are even lower (900 and 950 kcal/kg for dog and cat foods, respectively).

For products that are reduced in calories but not enough to merit a "lite" claim, the rules also allow for comparative claims. For example, if a company makes a very high calorie product and a lower calorie alternative, it can still make statements such as "25% less calories than our regular product." A calorie content statement must also appear on any product bearing a calorie-based claim. In addition to "lite" and "low calorie" claims, a similar set of rules were established for "lean" and "low fat" products, except based on maximum allowable fat percentages instead of calories.

A successful weight loss program takes owner involvement, too. Even a "lite" food can cause weight gain if fed to excess. Owners should follow the feeding directions suggested for weight loss, be careful not to give their pets snacks or table scraps, and even institute an exercise program as the pet's health dictates. Involvement of the veterinarian in the process is also the most prudent in ensuring both the success of the weight loss program and avoidance of potential health risks.

Dental Products
Label claims for "clean teeth" have been on pet food labels for many years, particularly on dry, hard biscuit products. As the field of veterinary dentistry and the awareness of the importance of proper dental hygiene have grown, a number of products have borne much more explicit claims. Claims to treat or prevent gingivitis or periodontal disease are drug claims and should not appear on pet food labels. Plaque or tartar control claims may also be implied drug claims, as they directly relate to dental disease. However, CVM has exercised some regulatory discretion with respect to plaque and tartar claims for products that achieve their effects by mechanical actions. The Veterinary Oral Health Center, an outside organization formed under the auspices of the American Veterinary Dental College, has developed an experimental protocol for companies to follow to demonstrate that their products are useful in reducing plaque and tartar. This organization will also review data from companies to verify that the claim is true, and if so, allow them to carry its logo on the package. CVM has worked with the Veterinary Oral Health Center in this process, so consumers can be assured that products that bear the logo are useful for plaque and tartar control.

Skin and Coat Products
Pet food labels abound with promises for "healthy skin" and "glossy coat." Any normal animal receiving adequate nutrition through use of a complete and balanced product should have these qualities. However, claims to uncategorically "improve" skin and coat or to cure or prevent disease signs such dry skin, flaky skin, or itching may be drug claims.

Perhaps most notorious is the claim for a product to be "hypoallergenic." Elimination diets are used by veterinarians in the diagnosis and management of food allergies. An elimination diet is one devoid of food ingredients likely to cause an allergy, often characterized by itchy, inflamed skin. Resolution of these clinical signs while the animal is on the diet is diagnostic of a food allergy, and trial and error then could be used to determine exactly to what the pet was allergic and what ingredients to avoid. Traditionally, lamb and rice was used as the elimination diet. There is nothing special or unique about these ingredients in terms of allergenicity, and prolonged exposure to these ingredients could also induce an allergic condition. However, they were historically novel sources of protein, since the use of these ingredients was uncommon in commercial dog foods. As such, a pre-existing allergy to lamb or rice would be unlikely.

In recent years, a plethora of products containing lamb and rice entered the consumer market. Many of these products were labeled as "hypoallergenic," or otherwise espoused the benefits of lamb and rice in the treatment or prevention of food allergies and other skin problems. Such claims were made even for products that contained other sources of protein that would disqualify them as effective elimination diets.

CVM does not object to the use of lamb or rice in pet foods. Foods that contain these products in sufficient quantities to meet AAFCO labeling criteria may make claims to the presence of these ingredients. However, any claim to be "hypoallergenic," or any other expressed or implied claim relating these ingredients with benefits to the skin and coat beyond their normal nutritive value is a drug claim.

The same may also be true of other ingredients. For example, many fat sources may contain substances known as omega-3 fatty acids. There are some studies in the veterinary literature to suggest that when used pharmacologically, these substances may have an effect on inflammatory skin disease. However, omega-3 fatty acids are not recognized as essential nutrients at this time. In other words, dogs and cats cannot have an "omega-3 fatty acid deficiency," and unqualified claims relating to omega-3 fatty acid content may falsely imply nutritional benefit where none has been established. Thus, if a product label bears a claim for omega-3 fatty acids, it must also guarantee its level in the product, accompanied by a disclaimer that it is "not recognized as an essential nutrient by the AAFCO (Dog or Cat) Food Nutrient Profiles."

Veterinary Medical Foods
A "medical food" was originally defined in the Orphan Drug Act as "a food which is formulated to be consumed or administered enterally under the supervision of a physician and is intended for the specific dietary management of a disease or condition for which distinctive nutritional requirements, based on sound scientific principles, are established by medical evaluation." Historically, even though medical foods are specifically intended for use in disease conditions, they were regulated by FDA as foods, not drugs. This was because the market for medical foods was relatively small, confined mainly to products such as infant formulas designed for babies with rare genetic conditions. Since the cost of obtaining a drug approval for the product grossly outweighed any profit manufacturers could expect from use in such limited circumstances, FDA allowed this exemption so that the products could be available for those who needed them.

The definition cited above is in reference to foods for human consumption. However, it could also apply to a category of foods for veterinary use that can be characterized as "veterinary medical foods" ("VMF"). These products are generally intended to be offered as the sole source of nutrition to animals with specific medical conditions. Historically, they usually contained restricted amounts of certain nutrients to aid in the mitigation of some disease processes. For example, low protein/low phosphorus diets could be used for some forms of kidney disease, while a low sodium diet could be helpful in some forms of heart disease.

These products are often identified on the market by the label bearing the phrase "use only as directed by your veterinarian," and are often sold only by veterinarians
.
As foods, VMF are subject to the same labeling requirements as are any other pet food. As such, labels may not bear drug claims. This restriction also applies to product names. Thus, these products are often given names that would not be easily recognized by the average consumer, such as initials or numbers. Also, VMF labels must meet the same criteria for substantiation of nutritional adequacy as other pet foods. Previously, foods labeled "for veterinary use" were exempt from meeting other AAFCO requirements for "complete and balanced" foods. This appeared contradictory, since assurances of nutritional completeness take on even greater significance when used on sick animals. This fact has been borne out by several well-publicized incidents of nutritional deficiencies in animals fed VMF (for example, taurine and potassium deficiencies were discovered in cats on VMF). Thus, products must now substantiate adequacy by meeting the AAFCO nutrient profile or passing an AAFCO feeding trial protocol for adult maintenance, or include the phrase "for intermittent or supplemental feeding only." Some companies have attempted to circumvent these requirements by listing "intermittent use" on the label, but claiming complete nutritional adequacy in brochures or other sources. Regardless of what the brochures say, if this last statement appears on the label it means that the product has not been shown to be complete and balanced for the normal animal. Thus, it should be used only for certain medical conditions as directed by a veterinarian. Directions for use are presumed to be provided by the veterinarian to the pet owner, so VMF labels are exempt from the AAFCO requirement to include feeding directions.

Labeling of VMF with statements regarding their use in the mitigation of disease processes would imply therapeutic use and thus is not permitted. However, CVM recognizes that VMF have a scientifically sound basis, and they serve a purpose. Thus CVM generally exercises regulatory discretion with respect to distributing truthful information on VMF in materials intended only for veterinarians. Proper use of these types of products requires adequate veterinary supervision. An owner who feeds a VMF product for its desired therapeutic effect solely on the basis of labeling or advertising claims may cause harm resulting from improper diagnosis or treatment.

Dietary Supplements and "Nutraceuticals"
With the availability of today's "complete and balanced" products, nutritional supplements are needed only in very rare circumstances. Injudicious use of supplements runs a greater risk of causing dietary imbalances or toxicity than it does to actually improve the diet. Therefore, unless the pet is being fed a homemade diet that requires additional sources of certain nutrients, or unless a veterinarian diagnoses a medical condition that could benefit from supplementation, it is best not to give supplements to pets.

"Dietary supplements" describe a much broader range of products. Some provide essential nutrients, such as vitamins and minerals, but others contain substances that are not recognized as essential for the intended species (for example, vitamin C for dogs and cats, omega-3 fatty acids). Herbs, plant or organ extracts, enzymes, and a host of other substances are also often marketed as dietary supplements. The market for dietary supplements was boosted by passage of DSHEA. This law changed the way FDA regulated these products for humans. Briefly, it said that FDA could not call a substance a "drug" or "food additive" if it met the definition for a dietary supplement and was not already regulated as a drug or food additive. Thus, it shifted the burden of the manufacturer having to prove a product was safe before it went on the market to the FDA having to prove it was unsafe before it could be removed. This prompted a sizable increase in the number and range of dietary supplements available on the market today.
DSHEA only applies to human products, not pet products. Some of the substances allowed for sale as human dietary supplements may not be legally permitted to be sold for animals. Although some of the supplements, such as herbal products, may have "thousands of years of history of safe use," this does not include history of use in animals. Animals may react very differently to substances than people, and even small doses can cause adverse effects. For example, aspirin and chocolate, both substances that are used by people every day without ill effect, can be toxic to pets and even cause death. Therefore, since it's not known what the true effects an herb or other supplement may have on pets, it's safest not to allow marketing for that use.

On a case-by-case basis, CVM has reviewed safety information for some substances and allowed them to be used in animal feeds (for example, L-carnitine in dog foods), even though they were officially "unapproved food additives." If included in a pet food or supplement, they must be properly declared on the label. If the substance is not an essential nutrient, the disclaimer "not recognized as an essential nutrient by the AAFCO (Dog or Cat) Food Nutrient Profiles" must also appear on the label.

The term "nutraceuticals" was coined to describe the increasing number of products offered for the prevention or treatment of disease but marketed under the guise of dietary supplements. The promise of a "safe" and "natural" remedy for disease is very appealing. However, since the product has not undergone the same testing for safety and efficacy as required for approved drugs, it's impossible to know whether the product works at all or is even unsafe. Presently, these substances are drugs if the labeling bears claims to treat or prevent disease, or if the intended use as a drug can be established by other means.

Summary
An informed consumer is the best consumer. It is easy to be confused by all the claims and promises made for pet foods and supplements, but keeping the rules described above in mind should help. If the pet owner has any questions, he or she should not hesitate to contact the manufacturer. Asking for advice from parties other than the manufacturer, such as FDA or state regulatory officials or university experts, may also be a good source of unbiased information. Also, as with other health matters, the pet's veterinarian should be consulted on dietary choices, especially with respect to any special use products.
This comment is provided by David A. Dzanis, DVM, Ph.D., DACVN, and in its original can be found on the FDA's Center for Veterinary Medicine under Information for consumers food and drug administration center for veterinary medicine

Thursday, March 26, 2009

What a treat! Choosing the right goodies for your companion

Think of pet treats and many of us envision those highly processed, highly flavored morsels in the shape of fishes or mailmen. They might be fun to buy and give to your dog and cat, and your animal might love eating them, but at best all they do is add empty calories to his diet. Most also contain all kinds of risky ingredients, including artificial colorings, sugars and fillers. Just like people who are always snacking on candy and cookies, animals that eat too many treats can become prone to obesity, diabetes and other health issues.
Here’s a look at the different types of pet treats you can buy and the pros and cons of each.
Biscuits
These are an old standby, so familiar we don’t think about what’s in them. But they are what they look like: Cookies! The average dog biscuit contains more grain than most dry foods, as well as flavorings of all sorts.
Here’s an example: Yodel is a heavy 30 pound beagle. He gets two medium sized biscuits in the morning, two for “lunch,” and two after he goes out before bed. Each biscuit contains 35 calories. Yodel’s ration for the day is about 550 calories; with six biscuits a day, 210 of those calories are being provided by treats, on top of what he’s already eating. His owners didn’t do their arithmetic, and Yodel got fat. Because of this, his life may be shortened, and he may be more likely to develop arthritis and other chronic health problems.
When buying biscuits, choose organic, natural products made with only whole grains and that contain as few synthetic ingredients and additives as possible. Keep in mind that even natural biscuits will add to the carbohydrate level of your animal’s diet, making it harder for him to maintain a proper weight. Break the treats up into small pieces, or buy the smallest size you can find, so you’re not giving your animal as much at a time.
Meat based treats
These come in all shapes and forms, from jerky to tiny freeze-dried cubes. Look for whole food products. Brands that bear “meat-sounding” names may be full of artificial coloring to make the treat look like bacon, beef or other meats.
Meat-only treats include freeze-dried or dehydrated meat such as liver, turkey breast strips, lamb lungs and other body parts. These treats are mostly protein, but they still add calories. A 20 pound dog who consumes a full piece of lamb lung is getting most of his calories for the day, and not in a balanced way. Again, break these treats into small pieces.
Hint: Cats love meat and fish based treats. Read labels carefully: attractively packaged, smelly treats may contain low quality ingredients.
Freeze dried meat and vegetable diets make excellent, often “complete and balanced” treats. They contain both protein and fat, though, so they add more calories than meat only treats of the same size.
All meat based treats should be bought in small packages and used promptly. Store them in the freezer to preserve the fats and keep the treats dry.
People food treats
It’s not surprising that every time you open the fridge door, Fido shows up, wondering if there’s something inside for him! In fact, human food can make fresh, nutritious treats for dogs and cats, so long as you choose the right things. Blueberries, carrots, apples, melon, eggs, or bits of cheese or meat are all tasty tidbits. As with any treat, size and quantity are important, but since many of these foods still have their water content, they aren’t as fattening. A piece of apple has far fewer calories than even a small biscuit.
Peanut butter and celery is an entertaining dog treat, but it does have an extremely high caloric content, and should be saved for special occasions.
Hint: Avoid giving your animal raisins, grapes, onions, and chocolate; these can all have toxic effects. Also, don’t feed him junk food like potato chips or hot dogs.
Chew treats
Chew treats can promote mental, dental and overall physical health, and may also help prevent a growing puppy from gnawing on your furniture or shoes. Here’s what you need to know about them:
A raw meaty bone (not cooked) is the best and healthiest chew treat.
Food stuffed toys provide lots of physical and mental stimulation. A rubber Kong fillled with a few crunchy treats, a piece of cheese, or a bit of peanut butter will keep a dog working for a long time. Treat balls stuffed with small crunchy treats add an element of play as the dog throws and bounces it around to get the goodies out.
Avoid rawhide treats. Not only do they contain no nutrient value, but dogs tend to swallow large chunks which can cause life threatening blockages in the digestive system. Even small pieces can be irritating to the GI tract and may cause diarrhea.
HintAlways supervise your dog when he has a chew treat.
The green chews promoted for dental health are often made with a gluten base. Gluten is one of the most common causes of allergies in dogs and should be avoided.
Other cooked or smoked body parts also need to be carefully evaluated. Pigs’ ears, for example, are not recommended because they are high in fat. Tracheas and tendons are easy to digest and add cartilage to the diet, but can pose a choking hazard.
Hint: “Cat grass”, available as a kit or already growing, is an excellent kitty treat, providing entertainment and live green nutrients for indoor felines. Some dogs also enjoy nibbling on fresh greens. Look for an organic product.
Treat time is an important part of the day for your companion animal. The most healthful goodies you can give your dog or cat are those made from fresh, whole foods. It’s all right to buy those cute little fishes and mailmen once in awhile, but stick to real food or meat treats most of the time. You’ll help your animal maintain a healthy weight and live longer.

Contibuted by Steve Brown and Beth Taylor, co-authors of "See Spot Live Longer: How to help your dog live a longer and healthier life."
Originally published in the "Pet Food Report, 2007" by the publishers of Animal Wellness Magazine