Value Per Nutrient Food 6.59 mg 100 grams Niacin Beef, round, eye of round, roast, separable lean and fat, trimmed to 1/8" fat, choice, raw 6.59 mg 100 grams Niacin Pork, cured, ham with natural juices, slice, bone-in, separable lean only, unheated 6.59 mg 100 grams Niacin Lamb, domestic, leg, whole (shank and sirloin), separable lean and fat, trimmed to 1/4" fat, choice, cooked, roasted 6.59 mg 100 grams Niacin Beef, round, top round, steak, separable lean and fat, trimmed to 1/8" fat, all grades, raw 6.58 mg 100 grams Niacin Mushrooms, maitake, raw 6.58 mg 100 grams Niacin Beef, bottom sirloin, tri-tip roast, separable lean only, trimmed to 0" fat, all grades, raw 6.58 mg 100 grams Niacin Turkey, young hen, light meat, meat and skin, cooked, roasted 6.58 mg 100 grams Niacin Veal, sirloin, separable lean and fat, cooked, braised