Value Per Nutrient Food 0.34 g 100 grams Tryptophan Veal, variety meats and by-products, kidneys, cooked, braised 0.34 g 100 grams Tryptophan Chicken, broilers or fryers, meat only, roasted 0.34 g 100 grams Tryptophan Pork, fresh, loin, whole, separable lean and fat, cooked, broiled 0.34 g 100 grams Tryptophan Lamb, domestic, shoulder, blade, separable lean and fat, trimmed to 1/8" fat, choice, cooked, braised 0.34 g 100 grams Tryptophan Pork, fresh, loin, country-style ribs, separable lean only, cooked, roasted 0.34 g 100 grams Tryptophan Chicken, heart, all classes, cooked, simmered 0.34 g 100 grams Tryptophan Chicken, broilers or fryers, light meat, meat only, cooked, stewed 0.34 g 100 grams Tryptophan Duck, young duckling, domesticated, White Pekin, breast, meat and skin, boneless, cooked, roasted