Value Per Nutrient Food 0.42 g 100 grams Tryptophan Cheese, gruyere 0.41 g 100 grams Tryptophan Lamb, domestic, shoulder, arm, separable lean only, trimmed to 1/4" fat, choice, cooked, braised 0.41 g 100 grams Tryptophan Game meat, elk, raw 0.41 g 100 grams Tryptophan T.G.I. FRIDAY'S, classic sirloin steak 0.41 g 100 grams Tryptophan Pork, fresh, shoulder, arm picnic, separable lean only, cooked, braised 0.41 g 100 grams Tryptophan Pork, ground, 96% lean / 4% fat, cooked, pan-broiled 0.41 g 100 grams Tryptophan Pork, fresh, variety meats and by-products, pancreas, raw 0.41 g 100 grams Tryptophan Beef, round, top round, separable lean only, trimmed to 0" fat, select, cooked, braised