Is there a food that contains only protein?

[Phoeff]

Do all protein sources contain at least a smidge of fat or carbohydrate?

I don't mean a processed food, like protein powder, but a natural source.

[Sarah]

I'd think egg whites are about as close as one can get. They still have a smidge of fat and carbs though.

Why?



Today's favorite word - smidge. Way too long since I used that one. :clap:

[calvak]

I think I read in M&F a long time ago that blue crab is all protein. No fat. No carbs.