Every person has a basic constitution that does not change from birth to death. From time to time he or she has illnesses or other disturbances.

This constitution is characterized by his or her Ayurvedic tri-dosha balance [x% kapha, y% pitta, 1-x%-y% vatta].

The food that you eat should optimally correspond to your tri-dosha balance. Over time, as your yoga practice develops, you become much more sensitive to what you eat and you prefer vegetarian, fresh, light food.

Your diet also needs to change if you want to become fit, or want to reduce weight.