Value Per Nutrient Food 0.39 g 100 grams Tryptophan Beef, round, top round, separable lean and fat, trimmed to 1/8" fat, all grades, cooked, braised 0.38 g 100 grams Tryptophan Game meat, rabbit, domesticated, composite of cuts, cooked, roasted 0.38 g 100 grams Tryptophan Lamb, domestic, shoulder, whole (arm and blade), separable lean only, trimmed to 1/4" fat, choice, cooked, braised 0.38 g 100 grams Tryptophan Chicken, broilers or fryers, light meat, meat only, cooked, fried 0.38 g 100 grams Tryptophan Beef, round, top round, separable lean and fat, trimmed to 1/8" fat, choice, cooked, braised 0.38 g 100 grams Tryptophan Beef, chuck, mock tender steak, boneless, separable lean only, trimmed to 0" fat, all grades, cooked, braised 0.38 g 100 grams Tryptophan Restaurant, family style, sirloin steak 0.38 g 100 grams Tryptophan Game meat, boar, wild, cooked, roasted