Common high-protein food index (protein per 100 grams of food) Food name content (grams) Food name content (grams) Oats 15.6 Lotus seeds 16.6 Sesame seeds 21.9 Hazelnuts 15.9 Soybeans 36.3 Watermelon seeds 31.8 Mung beans 23.8 Pumpkin seeds 35.1 Cowpeas 22.3 Sunflower seeds 23.1 Broad beans 28.2 Pork (lean) 16.7 Peas 24.6 Pork heart 19.1 Jack beans 30.7 Pork liver 21.3 Tofu skin 50.5 Pork kidney 15.5 Dried mushrooms 38.0 Pork skin 26.4 Peanuts 26.2 Pig blood 18.9 Walnuts 15.4 Beef (lean) 20.3 Pine nuts 16.7 Mutton (Lean) 17.3 Lamb liver 18.5 Silver carp 17.0 Sheep kidney 16.5 Squid 15.1 Rabbit meat 21.2 Whitebait (dried) 72.1 Chicken 21.5 Dried scallops 63.7 Chicken liver 18.2 Clams (dried) 51.3 Duck meat 16.5 Sea cucumber (dried) 76.5 Eggs 14.7 Lobster 16.4 Duck eggs 14.2 River shrimp 17.5 yellow croaker 16.5 shrimp 47.6 hairtail 18.1 river crab 15.7 herring 19.5 soft-shell turtle 17.3 crucian carp 19.5 quail meat 25.0 carp 20.5 seaweed 24.7 eel 17.2 nostoc 20.0.