Searching for an even leaner alternative to beef with plenty of flavor? Look to bison. Bison meat contains only 2-3 grams of fat per 3.5-ounce serving—beef has multiple times that, averaging 8-9 grams of fat in a comparable cut. It also has fewer calories per ounce, making it a precious source of protein for guys trying to stay lean.
8. Chia Seeds
Take the most nutritious food item you can imagine, and there’s a good chance it still pales in comparison to the tiny chia seed. Long heralded by indigenous South American peoples as a source of strength and energy, chia seeds are rich in omega-3 and omega-6 fatty acids, soluble fiber, potassium, and antioxidants. Toss them in a shake, or put it in a bowl of oatmeal.