Below are possible answers for the crossword clue Say, good source of protein.
3 letter answer(s) to say, good source of protein
EGG
animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds
coat with beaten egg; "egg a schnitzel"
one of the two male reproductive glands that produce spermatozoa and secrete androgens; "she kicked him in the balls and got away"
oval reproductive body of a fowl (especially a hen) used as food
throw eggs at
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