Advice by Rabbi Nachman of Breslov #11, 12, 13
11) Never eat more than you need. If you eat unnecessarily It can be very harmful. Even the food which the body needs is then joined with the extra food and causes great damage (257).
12) A person who eats excessively is like an animal. To be human is to eat only what is necessary . Excessive eating brings on fever. Another cause of fever can be if a person eats food which is insufficiently pure for human consumption (263).
13) Greed for food is one of the three lusts which destroy the heart’s capacity for awe and reverence for God. The other two are the desire for wealth and the sexual appetite. Each of the three festivals of the year has its own spiritual influence which counters one of these desires. Pesach counters the desire for wealth; Shavuot the sexual impulse. The greedy desire for food is broken through the influence of Succot. Celebrating Succot fittingly will bring an illumination which can help one to control one’s appetite for food (II, 1: 4,5).