Value Per Nutrient Food 0.33 g 100 grams Tryptophan Lamb, domestic, cubed for stew or kabob (leg and shoulder), separable lean only, trimmed to 1/4" fat, cooked, broiled 0.33 g 100 grams Tryptophan Beef, round, full cut, separable lean only, trimmed to 1/4" fat, select, cooked, broiled 0.33 g 100 grams Tryptophan Game meat, buffalo, water, cooked, roasted 0.33 g 100 grams Tryptophan Duck, domesticated, meat only, cooked, roasted 0.33 g 100 grams Tryptophan Beef, shoulder steak, boneless, separable lean only, trimmed to 0" fat, choice, cooked, grilled 0.33 g 100 grams Tryptophan Cheese, muenster 0.33 g 100 grams Tryptophan Pork, shoulder, petite tender, boneless, separable lean and fat, cooked, broiled 0.33 g 100 grams Tryptophan Fish, tuna, light, canned in oil, without salt, drained solids