Value Per Nutrient Food 0.21 g 100 grams Tryptophan Beef, chuck, clod roast, separable lean only, trimmed to 1/4" fat, all grades, raw 0.21 g 100 grams Tryptophan Beef, plate, outside skirt steak, separable lean only, trimmed to 1/4" fat, all grades, raw 0.21 g 100 grams Tryptophan Mollusks, oyster, Pacific, cooked, moist heat 0.21 g 100 grams Tryptophan Beef, short loin, t-bone steak, separable lean and fat, trimmed to 1/8" fat, choice, raw 0.21 g 100 grams Tryptophan Lamb, variety meats and by-products, kidneys, raw 0.21 g 100 grams Tryptophan Turkey, young tom, dark meat, meat and skin, raw 0.21 g 100 grams Tryptophan Beef, composite of trimmed retail cuts, separable lean and fat, trimmed to 1/8" fat, select, raw 0.21 g 100 grams Tryptophan Beef, round, top round, steak, separable lean only, trimmed to 1/8" fat, choice, cooked, broiled