AN 3.16 mantra: eat to live, don't live to eat

 I heard that saying from a vegan expert.

But it's also a great mantra, something you can slowly chant to yourself while you're eating, alternating with the Buddha's detailed explanation of the same mantra:

4👑☸ → AN‍ → AN 3 → AN 3.16 

...

proper way to eat

Kathañ-ca, bhikkhave, bhikkhu
bhojane mattaññū hoti?	eat (in) moderation ****?
Idha, bhikkhave, bhikkhu	Here, monks, a-monk
paṭisaṅkhā yoniso āhāraṃ āhāreti:	reflecting carefully (on) food (he) consumes:
‘neva davāya	'not (for) amusement,
na madāya	not (for) intoxication,
na maṇḍanāya	not (for) beautification,
na vibhūsanāya,	not (for) attractiveness,
yāva-deva imassa kāyassa ṭhitiyā yāpanāya	only-for this body's maintenance (and) nourishment,
vihiṃs-ūparatiyā	injury-avoidance [from under eating],
brahmacariy-ānuggahāya,	[for] assisting (the) holy-life,
iti purāṇañca vedanaṃ paṭihaṅkhāmi,	[thinking:] thus old feelings [of hunger] I-will-terminate,
navañca vedanaṃ na uppādessāmi,	new feelings [of overeating] I-will-not-arouse,
yātrā ca me bhavissati anavajjatā ca	{and} healthy I will-become, blamless and
Phāsu-vihāro cā’ti.	(in) comfort (I) dwell ****.
Evaṃ kho, bhikkhave, bhikkhu	Thus indeed, monks, a-monk
bhojane mattaññū hoti.	eat (in) moderation ****.

The Buddha's mantra which might serve as a summary of that passage, might be something like:

Eat in moderation for brahmacariya, not for sensual pleasure indulgence.

but this is short and catchy:

eat to live, don't live to eat