Functions of the basic nutrients in dry foods

Proteins are very important in structural development and the immune system. They are necessary for all aspects of dog’s growth and also provide an important energy source.
  
Fat is the most important energy source. Fats contain approximately two-and-one-fourth times the energy as an equivalent weight of protein or carbohydrates. They contribute to palatability, influence the texture of foods, and carry fat soluble vitamins. They are also source for beneficial fatty acids.

Fiber: dogs do not derive any energy from fiber (insoluble carbohydrates), but having fiber in the diet improves colon health and is good for digestion. In dry food they are essential in keeping the kibbles together.

Ash is actually not added as an ingredient. It is an indicator of mineral (mainly potassium and phosphorus with smaller amounts of calcium, iron, magnesium, sodium and zinc, and trace amounts of many others) content.


 

Carbohydrates are an easy-digestable energy source and they are also essential in the formation of dry pet food. The starchy carbohydrates are used to add structure, texture, and form to kibbled food helping to create a product that is stable and easy to feed.   
  
Minerals work together with vitamins, enzymes, and other minerals in the body. They are necessary for many different functions such as formation of bone and cartilage, function of muscles and nerves, maintaining fluid balance, transportation of oxygen in the blood, and production of hormones.

Vitamins are indispensable for thousands of different chemical reactions in the body. They work together with minerals and enzymes to assure ia. normal digestion, cell reproduction, growth and function of muscle and bones, and healthy skin and fur.
  




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