Value Per Nutrient Food 0.03 g 100 grams Tryptophan Mustard greens, frozen, cooked, boiled, drained, with salt 0.03 g 100 grams Tryptophan Pork, cured, separable fat (from ham and arm picnic), roasted 0.03 g 100 grams Tryptophan Yogurt, fruit, low fat, 10 grams protein per 8 ounce, fortified with vitamin D 0.03 g 100 grams Tryptophan Frostings, white, fluffy, dry mix 0.03 g 100 grams Tryptophan Corn, sweet, yellow, canned, whole kernel, drained solids 0.03 g 100 grams Tryptophan Mustard greens, frozen, cooked, boiled, drained, without salt 0.03 g 100 grams Tryptophan Squash, winter, butternut, frozen, unprepared 0.03 g 100 grams Tryptophan Soup, chicken vegetable, canned, condensed