Within six hour, the digestive process transforms the food to its necessary nutrients, which in a period of thirty-five days provide nourishment to seven bodily tissues (dhatus). The biological fire of the digestive system (agni) has its central seat in the stomach and controls all metabolic transformation in the body.
The absorbed nutrients at the level of the stomach are used to produce body fluids, plasma, blood and lymph. The digestion of food in the small intestine affects the formation of muscle, fat and bone. The final processing of food in the large intestine applies nutrients to the regeneration of the skin, brain tissue, nervous system and reproductive organs.
The optimal metabolism therefore ensures good digestion, absorption and transformation of food as well as sensual perceptions, nourishment of bodily tissues and cells, strong immune system, vitality, good health, visual perception, body temperature and the colour of the skin. It creates joy, enthusiasm and contentment, stamina, courage and confidence, enhances stability and patience, stimulates clear thinking, logical reasoning and maintains cellular intelligence. When the psychosomatic principles of Vata, Pitta and Kapha are in their balance in accordance with the individual constitution, then the harmonic metabolism occurs in the body.
Recommendations for proper care of the digestive tract can be found in the articles Keep a Healthy Fire in Your Body and The Golden Ayurvedic Rule - Diet as Medicine, where you find the theory of the six basic tastes and how they affect our psychosomatic balance.