Having reflected thus, at least say to yourself from your whole soul and with heartfelt sorrow: Eat, unworthy one, enough so that you will not die. Dry up your body; confine your insatiable desires; grieve and belittle yourself. Will not the most merciful Lord look down upon this grief and contrition of my heart which are justly deserved? Even though my contrition itself is imperfect and insufficient, will not God Who is endless in mercy still have mercy on me and forgive the great evils that I have done?
Constantly reflecting thus and reproaching yourself, decide for yourself how much you should eat and drink every day to satisfy the needs of nature. Avoid as much as possible not merely overeating, but even eating just enough to be full. Keep in mind what was said above, that one should eat and drink only to the point where one is still a little hungry and thirsty.