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Nutrients such as protein, fat, vitamins, and minerals are important players in the skin and coat health of dogs and cats. To understand their role, it is necessary to first understand skin and hair.
The purpose of skin and hair is to block things (such as water or heat) from leaving, or things (such as viruses and bacteria) from entering the body.
The hair coat is composed almost entirely of protein. If an animal's diet doesn't contain adequate protein quantity and quality, hair may fall out, or become dry, weak, and brittle.
Skin is made up of squamous cells, which are flat cells tightly packed together. These cells have tough membranes that are composed of proteins and fats. Without proper amounts of these nutrients, cell membranes weaken, allowing water to escape and bacteria and viruses to enter more easily.
Proteins are found in both animal-based and plant-based ingredients. Animal-based proteins contain all the essential amino acids cats need, whereas plant-based proteins may contain only some essential amino acids. Cats need animal-based proteins to achieve optimal health.
Fats also can be found in both animal-based and plant-based ingredients, and they are incorporated into skin cells as fatty acids. There are two essential fatty acids for skin and coat health. Linoleic acid maintains skin and coat condition in dogs and cats. Without enough linoleic acid cats may experience dull, dry coat, hair loss, greasy skin and increased susceptibility to skin inflammation. Cats also require arachidonic acid for normal skin and coat health.
Both of these essential fatty acids are omega-6 fatty acids and are found in animal tissues such as chicken fat. Linoleic acid is also found in some vegetable oils, such as corn and soybean oils. Most commercial cat diets contain more than adequate amounts of omega-6 fatty acids.
Because these fatty acids can be converted to compounds that increase susceptibility to skin inflammation, it is important to balance the amount of omega-6 fatty acids in the diet with omega-3 fatty acids, which do not reduce susceptibility to inflammation.
Omega-3 fatty acids are found in oils from fish and some plants (canola and flax).
IAMS™ research has found that combining fat sources in the diet at a ratio of five to 10 omega-6 fatty acids to one omega-3 fatty acid results in excellent skin and coat health.
Vitamins and minerals are essential for the development of healthy skin and hair coat. The best way to provide these nutrients is through a complete and balanced diet containing appropriate amounts of essential vitamins and minerals rather than through supplements.
Vitamin or Mineral | Important for Skin and Coat Health |
Vitamin A | Necessary for growth and repair of skin |
Vitamin E | Protects skin cells from oxidant damage |
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 |
Diet is often believed to be a factor when changes in skin and coat condition are noticed. The most common causes of these changes, however, are season and life stage.
As cold weather approaches, most dogs and cats grow a thick coat to help keep heat in and cold air out. As the weather begins to warm up, they shed the thick, heavy coat.
Most kittens are born with soft, fuzzy hair, but as they age, a coarser coat grows. Pregnant or lactating cats also may experience a change in coat condition or hair loss.
Taurine is an important component to all IAMS™ cat foods, such as IAMS ProActive Health™ Adult Original with Chicken.
Taurine is an essential amino acid that is critical for normal heart muscle function, vision, and reproduction in kittens. It is also needed to form the bile salts that aid in digestion. Unlike other amino acids, taurine is found as a free amino acid in body tissues such as the heart and eyes, and is not incorporated into proteins.
Most mammals manufacture taurine from other amino acids. However, cats cannot manufacture a sufficient amount and, therefore, must acquire enough additional taurine through diet to meet their needs. In pet food, taurine is naturally found in animal-based protein ingredients and can also be added separately.
Taurine is supplemented in IAMS dry and canned cat foods to ensure that we provide optimal levels of this essential nutrient. IAMS wet cat foods are supplemented with taurine because they must contain as much as twice the amount of taurine found in dry food for cats to maintain adequate blood taurine levels. The canning process may affect the complex taurine balance in your cat. Our wet cat foods are supplemented with taurine to meet these higher needs.
IAMS dry cat foods also include taurine as an ingredient to supplement the primary source of this amino acid, which is animal-based protein from sources such as chicken, egg, lamb, and fish. However, these sources can vary in their taurine content, and adding more taurine is a sound approach to ensure optimal taurine levels.
Taurine is essential to the proper development and function of cells in the retina of the eye. If insufficient taurine is present, the retinal cells don’t function properly and may die, eventually causing impaired vision and even blindness. This process is referred to as feline central retinal degeneration.
Taurine is also necessary for normal function of the heart muscle cells. Taurine deficiency leads to weakening of the heart muscle, which, in turn, can lead to heart failure. This condition is known as dilated cardiomyopathy and can be fatal.
Decreased Reproductive Performance and Growth
Taurine is necessary for optimal reproductive and growth performance. Both the queen and kittens must maintain adequate taurine levels during pregnancy, lactation, and growth to ensure proper structural development.
IAMS cat foods are formulated with high-quality, animal-based proteins as their primary ingredient. In addition, they are supplemented with extra taurine to ensure balanced levels of essential amino acids.
Case L, et al. Canine and Feline Nutrition. 3rd ed. Maryland Heights, MO: Mosby Elsevier, 2011.
