Value Per Nutrient Food 0.26 g 100 grams Tryptophan Fish, mackerel, spanish, cooked, dry heat 0.26 g 100 grams Tryptophan Pork, fresh, shoulder, (Boston butt), blade (steaks), separable lean and fat, cooked, braised 0.26 g 100 grams Tryptophan Nuts, mixed nuts, dry roasted, with peanuts, with salt added 0.26 g 100 grams Tryptophan Duck, domesticated, liver, raw 0.26 g 100 grams Tryptophan Beef, short loin, t-bone steak, separable lean and fat, trimmed to 0" fat, USDA select, cooked, broiled 0.26 g 100 grams Tryptophan Peanuts, valencia, oil-roasted, with salt 0.26 g 100 grams Tryptophan Beef, short loin, porterhouse steak, separable lean and fat, trimmed to 1/8" fat, all grades, cooked, broiled 0.26 g 100 grams Tryptophan Peanuts, valencia, oil-roasted, without salt