Protein Definition: The US National Library of Medicine defines proteins as:
"Large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs."
Two of the most popular kinds of seafood in the world are crab and lobster. Of course, some seafood lovers have preferences when it comes to crab vs. lobster, while others enjoy both of these options in a nice crab and lobster bisque, for example.