Value Per Nutrient Food 0.22 g 100 grams Tryptophan POPEYES, Fried Chicken, Mild, Wing, meat only, skin and breading removed 0.22 g 100 grams Tryptophan Macaroni and cheese dinner with dry sauce mix, boxed, uncooked 0.22 g 100 grams Tryptophan Beef, round, tip round, separable lean and fat, trimmed to 1/8" fat, select, raw 0.22 g 100 grams Tryptophan Beef, round, bottom round, steak, separable lean and fat, trimmed to 0" fat, all grades, cooked, braised 0.22 g 100 grams Tryptophan Pork, fresh, backribs, separable lean and fat, raw 0.22 g 100 grams Tryptophan Formulated bar, MARS SNACKFOOD US, SNICKERS Marathon Energy Bar, all flavors 0.22 g 100 grams Tryptophan Lamb, domestic, foreshank, separable lean and fat, trimmed to 1/8" fat, choice, raw 0.22 g 100 grams Tryptophan Lamb, domestic, foreshank, separable lean and fat, trimmed to 1/4" fat, choice, raw