Food Source and Amount Calories Protein (g) Lean sirloin, 3 oz cooked 160 26 Skinless chicken breast, 3 oz cooked 137 26 Pork loin chop, 3 oz cooked 148 25 Red beans, 1.6 cups cooked 366 25 Firm tofu, 10 oz 235 25

Calories required to obtain approximately 25 grams protein (cooked or ready-to-eat portions) Source: United States Department of Agriculture Agricultural Research Service National Nutrient Database for Standard Reference Release 27

Table 4: Energy Comparison of 25-gram Protein Sources.