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By pet-admin, June 19, 2008 10:40 pm

Digestion and absorption of nutrients actually begin in the mouth, with the mastication (chewing) of food and its mixture with saliva. Digestion continues throughout the gastrointestinal system and ends with the excretion of waste products and undigested food in the feces.

For an animal to survive, water is the single most important nutrient for the body. Water within the cells is necessary for most metabolic processes and chemical reactions, is important for temperature regulation, and is an essential component of normal digestion. Pets obtain water from food, metabolic water, and obviously by drinking water. If the water content of food is increased or decreased, most pets are naturally able to achieve water balance by increasing or decreasing their intake of drinking water.
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