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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.
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.
