. The sunna is to only take the amount of food one is sure they can eat. Taking more than this is improper. Not finishing one’s food simply because it doesn’t taste good is disliked. Not doing so because one is genuinely full is excusable, though one should take heed and be more careful the next time.
Crumbs and left over bits of food should be eaten. As the Prophet (Allah bless him and give him peace) said, that is where the baraka may well be, and this is an expression of one’s recognition of the blessing of food.
2. If one sees food on the ground, it is recommended, if possible without preponderating secondary considerations, to pick it up.
