There are about 10 primary quotes on food in Bhagavad Gita.

Chapter 3, Verse 13:

The saintly persons who eat the food first offered to God are relieved from all kinds of sins, but the others who eat food for their own satisfaction are sinners and verily eat only sin.

Chapter 3, Verse 14:

All living beings live on food, and food is produced by rain. Rain comes from yajna and yajna is born of karma.

Chapter 6, Verse 16:

O Arjuna, those who eat too much or too little, sleep too much or too little cannot succeed in yoga.

Chapter 9, Verse 27:

O son of Kunti; Whatever you do, whatever you eat, whatever you offer or give away, and whatever austerities you perform – do that as an offering to Me.

Chapter 15, Verse 14:

It is I who assume the form of digestive fire in all living beings and mingling with incoming and outgoing breath, I digest the four kinds of food.

Chapter 17, Verses 7 to 10:

Even the food that is dear to all is of three kinds. The same is true for sacrifice, austerity, and charity. Now hear the distinctions between them from me.

Sattvic people prefer food that promotes longevity, strength, health, happiness, and satisfaction. Such foods are juicy, succulent, nourishing, and naturally tasteful.

Food that is excessively bitter, sour, salty, hot, pungent, dry, and burning is dear to Rajasic people. Such food causes distress, misery, and diseases.

And food that is stale, tasteless, decomposed, and left-over is preferred by Tamasic people.

Chapter 17, Verse 13:

The sacrifice, which is not performed according to the scriptural rules, in which no food is distributed, no hymns are chanted, and no fees are paid, and which is devoid of faith, is said to be of the nature of tamas.

If you know any other quotes on food in Bhagavad Gita that are not mentioned above, please use the comment section to inform us.