Value Per Nutrient Food 0.24 g 100 grams Tryptophan Pork, fresh, loin, top loin (roasts), boneless, separable lean only, raw 0.24 g 100 grams Tryptophan Pork, cured, ham with natural juices, shank, bone-in, separable lean only, unheated 0.24 g 100 grams Tryptophan Beef, chuck eye roast, boneless, America's Beef Roast, separable lean only, trimmed to 0" fat, all grades, raw 0.24 g 100 grams Tryptophan Pork, fresh, loin, top loin (chops), boneless, separable lean only, raw 0.24 g 100 grams Tryptophan Lamb, Australian, imported, fresh, composite of trimmed retail cuts, separable lean only, trimmed to 1/8" fat, raw 0.24 g 100 grams Tryptophan Lamb, variety meats and by-products, liver, raw 0.24 g 100 grams Tryptophan Veal, variety meats and by-products, spleen, cooked, braised 0.24 g 100 grams Tryptophan Chicken, broilers or fryers, wing, meat and skin, cooked, rotisserie, original seasoning