The three doshas, or bio-energies found in our body are:
Vata pertains to air and ether elements. This energy is generally seen as the force, which directs nerve impulses, circulation, respiration, and elimination.
Kapha pertains to water and earth elements. Kapha is responsible for growth and protection. The mucosal lining of the stomach, and the cerebral-spinal fluid that protects the brain and spinal column are examples of kapha.
Pitta pertains to fire and water elements. This dosha governs metabolism, e.g., the transformation of foods into nutrients. Pitta is also responsible for metabolism in the organ and tissue systems.

If you have been suppressing your body's needs for a long time with strict rules and taboos, your body will make you crave for some foods to compensate such restrictions. When any food is restricted, your body begins focusing on this food