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.
Providing your kitten with the proper nutrition goes way beyond just putting fresh food in a clean bowl. Your kitten’s nutritional needs will change as her body develops through adolescence. Proper nutrition during these critical growth periods will help your kitten mature into a strong, healthy adult cat. Discover four essential kitten-feeding tips you need to know in your kitten’s first year.
Learning what development milestones your kitten will experience in her first year will help you decide what and when to feed her.
After kittens are weaned, they enter a stage of rapid growth, which lasts through the sixth month of life. They need a balanced diet to deliver the nutrients and energy to sustain such rapid development.
Kittens have twice the energy needs of adult cats on a pound-per-pound basis. But their smaller mouths, teeth and stomachs limit the amount of food they can digest during a single meal. Therefore, it may be best to divide their total daily food amount into three or four smaller meals.
Because every bite must be packed with nutrition, kittens require a diet specifically formulated for growth. The best choice is a food with animal-based proteins that is highly digestible, nutrient dense and designed to meet kittens’ unique nutritional needs.
As kittens approach adult size, their nutritional requirements begin to change again. Their rate of growth begins to slow, activity levels may decline and they can start eating fewer, larger meals each day. During this stage, kittens begin to look like adults, but they are still growing and need the special nutrition found in kitten food.
The adolescent growth stage is a time when many cat owners are tempted to change a kitten’s food for variety. But cats do not get bored with a consistent diet of high-quality dry food. You can supplement your kitten’s dry food with a nutrient-dense canned food for a nutritious change of pace.
When your cat is about 12 months old, it’s time to switch to a maintenance formula adult cat food, such as IAMS™ ProActive Health™ Healthy Adult with Chicken. At this age, cats no longer need the extra calories and nutrients for growth supplied by kitten food. As with any change in a cat’s diet, remember to gradually transition from kitten food to adult food over a period of several days.
Monitor your cat’s weight and body condition during the transition, and adjust feeding portions if necessary. Because cats generally eat only what they need, free-choice feeding is fine for most cats. However, some indoor cats that don’t exercise much may overeat if fed free choice. In this situation, portion-controlled feeding twice a day is a good alternative.
Giving a kitten “human food” and table scraps can lead to undesirable behaviors, such as begging or stealing food. Feeding homemade diets or food formulated for adult cats (especially those designed for weight loss), or supplementing a complete and balanced diet with vitamins could cause nutritional disorders.
Kittens and cats are strict carnivores and need the nutrients found in meat. For example, sufficient amounts of taurine, an essential amino acid provided naturally through meat, help cats maintain healthy eyes, heart and reproduction. All IAMS kitten and cat food formulas have optimal levels of taurine for every life stage.

