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Common protein rich foods can include: 1  Milk. 2  Soy Milk. 3  Eggs. Cheese. 4  Yogurt. Peanut Butter.  Lean Meats, Fish, and 1  Poultry. Beans, Tofu, Lentils, and other Legumes.  Grains, including bread 1  and pasta. Nuts and  Seeds.
Best Answer: They are all high protein sources. Theoretically beef would be the lowest because it is the most fatty. Chicken would be second because of the fat in the skin. Fish is the most protein containing of the three. If your doctor does not want you to eat much protein, then look to the fruits, veggies and carbs.