Be sure it is fresh and the temperature they prefer. Water is the most important nutrient in the body. You can easily lose almost half of that amount in a day through sweat and urine, so frequent sips of water are crucial to maintaining good health and vitality. Water is a Life Giver. Every part of the body needs water in order to work.
Water is the primary component of blood and secretions like tears, saliva, mucus, and gastric fluid.
Cells need water so they can dissolve and transport vital nutrients. Without water no tissues can be repaired and very few chemical reactions can take place. Fortunately your body can control its water balance to a point. When fluid stocks run low, sodium levels in the body rise. The brain detects this change, then signals the kidneys to slow excretion and generates the sensation of thirst.