In the wild, cats live almost exclusively on meat. The “perfect” natural cat meal—a mouse—is about 50 percent fat, 40 percent protein, and 3 percent carbohydrate. Their sense of taste is much less developed than that of people or dogs. They have fewer taste buds, which can detect salt, sour, and bitter tastes, but not sweetness. Cats also have less digestive enzyme activity than dogs. Increasing the carbohydrate component of a cat’s diet does not stimulate increased dietary enzyme production, secretion, or activity, as it does in dogs. To remain healthy cats must have specific amino and fatty acids in their diets that can only be found in meat. Without proper nutrition, a cat will not grow or reproduce normally, maintain good health, or develop a strong immune system capable of fighting infection.