Food plays a major role in healthy living. Food materials we consume should give energy for the vital organs to function properly by strengthening the body constituents and biological humors. The concept of food in siddha is not only based on the food ingredients used but also temperament of the person taking the food. Food should vary according to the seasonal and geographical regions. One should consume the food agreeable or suitable to the geographical conditions and six division of days (Sirupozhuthu) and the six season (perumpozhuthu). Classification of certain foods, increase or decrease the strength of the body immediately. For example milk, tender coconut water, meat soup etc. gives instant strength. The foods are also classified into two types based on gunam and to body constitution. As per siddha literature, health begins with food. Thiruvalluvar also explains in his kural under the heading “medicine”, “no medicine is needed for the body if one eats after knowing that all food already eaten has been totally excreted”.