Consuming food is one of the characteristics of living things such as humans, animals, and plants. Food itself has several functions categorized mainly into 4 types. The former one is to produce heat which is related to the provision of warmth or energy. Fats and carbohydrates such as starches and sugar are the main sources of heat and energy production. Next, food functions as maintaining system that repairs broken cells and controls the growth. Normally, this function can be derived from animal and vegetable proteins. Food accessory which is considered as useful but not essential elements is the other function of food. It relates to the protection system come from minerals and vitamins. The Latter, food plays a role as a roughage such as fiber that dilutes other concentrated food types.