1. Start with the right purpose: Before eating, remind yourself that the purpose of eating is to sustain your body so that you can serve Hashem, not simply to enjoy food. The Chassidim would say: “הנני רוצה לאכול ולשתות כדי שאהיה בריא וחזק לעבודת השם יתברך” (“I’m eating and drinking in order to be healthy and strong to work for Hashem”). (Shulchan Aruch 231:1; Mishnah Berurah 170:10)
2. Choose food for your health, not just your taste: Eat what benefits your health rather than automatically choosing what is sweetest or most enjoyable. (Mishnah Berurah 170:10) Even a small amount of harmful food can be more detrimental than a larger amount of healthy food. (Kitzur Shulchan Aruch 32:3)
3. Eat only what helps you serve Hashem: When food is being used to give you the strength and health needed for Avodas Hashem, the meal itself becomes a seudah mitzvah. (Mishnah Berurah 170:10)
4. Know when enough is enough: The goal is to eat enough to sustain yourself, not to chase the pleasure of being full. (Shulchan Aruch 231:1; Mesillas Yesharim, end of Perek 11) Without haughtiness, a person would be satisfied with what he actually needs.
5. Remember how short-lived the pleasure is: Mesillas Yesharim (Perek 13) points out that eating is pleasurable for only a moment—the pleasure lasts while the food is in the throat. Once you are full, it makes little difference whether you ate something delicious or something ordinary. Overeating also weighs you down and harms your ability to function.
6. Practice stopping before you have to: Occasionally stop eating while you are still enjoying the food. Giving up that extra pleasure is itself a way of breaking taavah and can serve as a kaparah. (Mishnah Berurah 571:2)
7. Use permitted pleasures to build self-control: Orchos Tzaddikim (Shaar Yiras Shamayim) teaches that breaking desire, even with permitted foods, trains you to overcome the desires that can lead to aveiros. When faced with an issur, you can think: “If I don’t even indulge in permitted things, why would I indulge in something assur?”
8. Take overeating seriously: The Rambam (Hilchos De’os 5) teaches that overeating can lead to three serious prohibitions: “בל תשקצו,” “השמר לך,” and “בל תשחית.”
9. Don’t let food become your focus: Orchos Tzaddikim (Shaar Yiras Shamayim) teaches that someone who is preoccupied with eating and drinking will never possess wisdom. Food should serve you; it should not become what you live for.
10. Keep the bigger picture in mind: Shaarei Teshuvah (2:17) explains that the less a person indulges in the physical pleasures of Olam Hazeh, the less attached he becomes to this world. The goal is not to stop enjoying food altogether, but to make sure that food remains a tool for Avodas Hashem, rather than becoming an end in itself.
11. Don’t pursue food for its own sake: The Chinuch (Mitzvah 117) teaches that the mezbeach does not desire sweet and pleasurable foods. A person should not spend his life chasing after good food; he should eat what is beneficial and necessary for him.