Value Per Nutrient Food 0.23 g 100 grams Tryptophan Pork, fresh, leg (ham), rump half, separable lean and fat, raw 0.23 g 100 grams Tryptophan Beef, shoulder top blade steak, boneless, separable lean and fat, trimmed to 0" fat, select, raw 0.23 g 100 grams Tryptophan USDA Commodity, Peanut Butter, smooth 0.23 g 100 grams Tryptophan Beef, chuck, arm pot roast, separable lean only, trimmed to 1/8" fat, all grades, cooked, braised 0.23 g 100 grams Tryptophan Beef, chuck, arm pot roast, separable lean only, trimmed to 1/8" fat, choice, cooked, braised 0.23 g 100 grams Tryptophan Peanut butter, chunk style, with salt 0.23 g 100 grams Tryptophan Elk, free range, roast, eye of round, raw (Shoshone Bannock) 0.23 g 100 grams Tryptophan Fish, anchovy, european, raw