Before you assume that by-products in kitten food are a bad thing, here are some facts. In common usage, a by-product is something that is just that—a side product from the making of another product. By-products are not by definition poor quality. For instance, gingerbread cookies wouldn’t be the same without molasses, which is a by-product of sugar manufacture.
In relation to IAMS™ kitten and cat foods, by-products are generally parts of the animals that are not the muscle meat preferred by most consumers. The term refers only to the anatomic parts included, not to the nutritional quality of the parts.
While many may not be used to eating these animal parts themselves, it is important to realize that many of the items included in by-products (e.g., organ meats) may be higher in essential nutrients—amino acids, minerals, and vitamins—as well as more palatable to pets than the skeletal muscle meat.
In addition to nutritional benefits, inclusion of these ingredients in pet foods reduces waste and likely has environmental benefits as the livestock industry does not have to produce additional animals just to satisfy the needs for muscle meats to feed pets as well as people. Feeding these nutrient-rich, tasty parts to pets may prevent them from being wasted.
Much of the consumer confusion and discomfort surrounding by-products most likely stems from the marketing strategies of some pet food brands and perhaps from the ingredient name “by-product” itself.
It is important to keep in mind that most ingredients in pet foods can vary greatly in quality. In addition, quality cannot be assessed purely on the basis of the ingredient list. All by-products are not the same quality. Neither is all muscle meat. There are very high-quality by-products as well as poor-quality chicken and chicken meal.
Purchasing food only from reputable manufacturers who are very selective about their suppliers, have full-time, qualified nutritionists, and perform analytical testing to ensure that every ingredient, as well as the finished product, meets their exact nutrient specifications, will help avoid problems due to poor-quality ingredients.
Your cat’s skin and coat help keep viruses and bacteria from entering the body and prevent water and heat from leaving it. And because nutrients such as protein, fat, vitamins and minerals play crucial roles in your cat’s skin and coat health, it’s important to make sure your cat is receiving the right types and amounts. IAMS™ cat foods are designed to provide your cat with the nutrition they need to support their skin and coat health.
Without Proper Nutrition
With Proper Nutrition
Your cat’s hair coat is composed almost entirely of protein. If your cat’s diet doesn’t contain enough quality protein, her hair may fall out or become dry, weak and brittle.
But not all proteins are alike. Proteins are found in both animal- and plant-based ingredients. Animal-based proteins contain all of the essential amino acids cats need, while plant-based proteins may contain only some. Cats need the nutrients in animal-based protein sources for the best health.
Fats also can be found in both animal- and plant-based ingredients, and are incorporated into skin cells as fatty acids. Three fatty acids help maintain your cat’s skin and coat condition:
Without these fatty acids, cats may experience a dull, dry coat, hair loss and greasy skin.
To promote your cat’s skin health and elasticity, make sure to provide clean, fresh water at all times.
Most cat foods contain more than the required amount of linoleic acid, an omega-6 fatty acid. However, IAMS research shows that it is not just the amount, but the ratio of omega-6 to omega-3 fatty acids that is most beneficial to cats.
The optimal omega-6 to omega-3 fatty acid ratio to maintain a healthy skin and coat in cats is between 5:1 and 10:1. In other words, five to 10 omega-6 fatty acids should be present for every one omega-3 fatty acid.
Vitamins and minerals are essential for the development of healthy skin and coat. The best way to provide them is through a complete and balanced diet rather than through supplements.
| Vitamin or Mineral | Role in Skin and Coat Health |
| Vitamin A | Necessary for growth and repair of skin |
| Vitamin E | An antioxidant that helps maintain the health of skin cells |
| Vitamin C | An antioxidant that helps maintain the health of skin cells |
| Biotin | Aids in the utilization of protein |
| Riboflavin (B2) | Necessary for fat and protein metabolism |
| Zinc | Necessary for fat and protein metabolism |
| Copper | Involved in tissue, pigment, and protein synthesis |
The protein, fatty acids, vitamins and minerals in your cat’s food all play a vital role in your cat’s skin condition and coat health. While other factors, including the season and your cat’s age, can also affect the health of your cat’s hair and skin, optimal nutrition can help support a shiny coat and healthy skin.