Adjective synonym for 'all-in-one'?

Hi, I was thinking "multifunctional", but I'm using the word "meat", and "multifunctional meat" sounds weird. I'm talking about how someone can get enough iron and protein from one meat source while that person may need to eat a bunch of different non-meat foods to get the same amount of protein and iron. Meat is all-in-one--I already used that in my paper, but I don't want to be redundant so I need a synonym. Thanks!