Protein in the typical American diet often comes from meat and poultry sources. In fact, many carnivores (myself included) considered plant-based proteins to be strictly a way for vegetarians to get adequate protein, not as a possible protein option at meals. However, research suggests that not getting protein from a larger variety of sources—particularly plants and fish—and overconsuming meat and poultry are key contributors to chronic inflammation. Based on current health recommendations and research, here are the best protein choices and the frequency with which they should be eaten.