meal vs food product

meal and food product both are nouns.

Word	Noun	Adjective	Verb	Adverb
meal	Yes	No	No	No
food product	Yes	No	No	No

As nouns, food product is a hypernym of meal; that is, food product is a word with a broader meaning than meal:

meal: coarsely ground foodstuff; especially seeds of various cereal grasses or pulse
food product: a substance that can be used or prepared for use as food

Other hypernyms of meal include foodstuff.

meal (noun)	food product (noun)
the food served and eaten at one time	a substance that can be used or prepared for use as food
coarsely ground foodstuff; especially seeds of various cereal grasses or pulse
any of the occasions for eating food that occur by custom or habit at more or less fixed times