It is a known fact that life began in the sea and life continues to exist in an inner sea within our body, two-thirds of which is water. All of life's complex biochemical processes take place in a water medium, which accounts for the fluidity of our blood and lymph system. Water is our waste remover through urine and feces; it keeps our body temperature within a narrow range; it lubricates our joints and last but not of least importance to the bodybuilder, water is the primary constituent of muscle tissue.
Although it's true that our muscles are more than 70 percent made of water, it is not true that we should drink gallons of water a day to hasten the muscle growth process. Remember that excess beyond requirements is merely passed through the body. It is also true that various nutrients work together, and when one is lacking or deficient, the others are limited in their roles as well. There exists a vital association between water and the electrolytes potassium and sodium. These electrolytes must be present inside and outside our cells for water to remain in proper proportions in our bodies. So while water may be of great importance it is still not the only nutrient of importance. However there 3 important role of water for a bodybuilder: flushing out the toxins, assistance in the metabolism of fat and the process of fluid retention. According to different sources the amount of water required for an athlete daily varies between 2.5 and 4 liters.