Food, Nutrition and You http://google.co.in

The three basic need of human being are:

• Shelter
• Clothes
• Food

Man can live without shelter and clothes but not without food. Think of Adam and Eve, how they would have led theri life. Probably without an human engineered mansion or designer clothes but definitly teh first demand might have been food to eat. This itself proves the hiarchy of food in the list.