HUMAN NUTRITION

Detailed explanation-1: -Water. Water is probably the most important essential nutrient that a person needs. A person can only survive a few days without consuming water. Even slight dehydration can cause headaches and impaired physical and mental functioning.

Detailed explanation-2: -Water is colorless, tasteless and odorless. Because of its numerous and diverse functions in the body, it is often regarded as the most important nutrient. Most people can survive no more than 7 days without water (Williams, 2005).

Detailed explanation-3: -Water is essential for cellular homeostasis because it transports nutrients to cells and removes wastes from cells (Häussinger, 1996). It is the medium in which all transport systems function, allowing exchanges between cells, interstitial fluid and capillaries (Grandjean and Campbell, 2004).

Detailed explanation-4: -The essential nutrients in drinking water are calcium, magnesium, sodium and potassium. Each of these minerals raises the pH and alkalinity of drinking water, making it more healthy and alkaline.