Tuna ...Protien in a tin power house
 

Tuna is ultra-rich in protein, and very lean, especially when compared to terrestrial animal protein. If you’re buying tuna steaks, though, aim for sustainably fished tuna, since they are a heavily fished species. On a budget? A single 5-oz can of chunk white tuna (actually albacore, a tuna relative) contains 30 grams of protein.