No studies have shown that more than 2 grams per kilogram, or
1 gram per pound, is of value.
Sources Food
Meat, poultry, fish, dairy, andeggs are rich sources of highbiological value protein. The protein content of cooked meat and dairy products is between 15% and 40%.Plant sources of protein (legumes, nuts, and seeds) can
contribute to protein requirements. The protein content of cooked cereals, beans, lentils, and peas ranges from 3% to 10%.Protein content of selected foods is listed inTable 6.Right
Protein
The right protein is:
1)Enough
2)Good quality
3)Not overly linked with substances bad for healthFor example, peas or gelatin contain protein, but the quality ispoor.Meat may be a good source of high quality protein, but bad if
associated with lots of cholesterol and saturated fats.Fish may be a good source of high-quality protein, but bad if
associated with mercury or other toxins.These concepts are discussed in more detail below, under,BadCompanyon page63.SourceServingSizeProtein,gramsBeef, round steak, cooked3 ounce27.0Ground beef, cooked3 ounce25.7Turkey breast3 ounces25.7Veggie burger3 ounce25.7SourceServingSizeProtein,gramsPork chop, cooked3 ounces24.5Turkey, dark meat3 ounces24.3Chicken, dark meat3 ounces23.6Tuna, water packed3 ounce22Chicken breast3 ounces18.9Salmon, cooked3 ounce16.8Cheese pizza2 slices15.4Cheese, cottage, 1% fat½ cup14.0Yogurt, low-fat1 cup11Lentils, cooked½ cup9.0Milk, fat-free8 ounces8.3Peanut butter2 tablespoons8.1Milk, whole8 ounces8.0Split peas, cooked½ cup8.0Beans, black-pinto-garbanzo½ cup7.5Cheese, American1 ounce7.0Tofu3 ounces7.0Macaroni, cooked1 cup6.8Milk, soy8 ounces6.7Egg1 large6.3Ham1 ounces5.9Almonds1 ounces5.4Bread, wheat or white2 slices5.2Ice cream, regular1 cup5.0Green peas, cooked½ cup4.1Corn, cooked½ cup, or 1 ear2.5Rice, cooked½ cup2.2Orange1 large1.7Banana1 medium1.2Potatoes, white½ cup1.2Green beans, cooked½ cup1.0Carrots, cooked½ cup0.8Apple1 large0.0Table 6. Protein content of selected foods.Nutrition for Sports, Essentials of 57