Value Per Nutrient Food 0.25 g 100 grams Tryptophan Duck, domesticated, meat only, raw 0.25 g 100 grams Tryptophan Peanuts, spanish, raw 0.25 g 100 grams Tryptophan Turkey, fryer-roasters, light meat, meat and skin, raw 0.25 g 100 grams Tryptophan Lamb, Australian, imported, fresh, shoulder, blade, separable lean and fat, trimmed to 1/8" fat, cooked, broiled 0.25 g 100 grams Tryptophan Spaghetti, protein-fortified, dry, enriched (n x 5.70) 0.25 g 100 grams Tryptophan Macaroni, protein-fortified, dry, enriched, (n x 6.25) 0.25 g 100 grams Tryptophan Macaroni, protein-fortified, dry, enriched, (n x 5.70) 0.25 g 100 grams Tryptophan Beef, plate, outside skirt steak, separable lean and fat, trimmed to 0" fat, all grades, cooked, broiled