To cultivate mindfulness of eating, the Tathagata instructs us to approach food consumption with the same level of revulsion as we would feel if we were to consume our own child.

And how should the nutriment physical food be seen?

Suppose a couple, taking a small amount of provisions, would enter a great forest. And they have with them their only beloved and cherished child.

Then due to their small amount of provisions being exhausted and depleted while still in the middle of the forest, they might think: Our small amount of provisions is exhausted and depleted, and there is still a great stretch of forest ahead of us.

What if we were to kill our only beloved and cherished child, make dried flesh and powdered meat, and by eating our childs flesh, we might cross the remainder of this forest, lest all three of us perish?

Then the couple would kill their only beloved and cherished child, make dried flesh and powdered meat, and by eating their childs flesh, they would cross the remainder of the forest.

While eating their childs flesh, they would beat their breasts and lament: Where are you, our only child, where are you, our only child? What do you think would they eat that food for amusement or for enjoyment, or for the sake of physical beauty or attractiveness? No, venerable sir. Wouldn't they eat that food only for the sake of crossing the forest? Yes, venerable sir. In the same way I say that physical food should be seen.

When physical food is fully understood, the lust for the five cords of sensual pleasure is fully understood. When the lust for the five cords of sensual pleasure is fully understood, there is no fetter bound by which a noble disciple might come back to this world. - SN12.63