Value Per Nutrient Food 5.37 mg 100 grams Niacin Snacks, DOO DADS snack mix, original flavor 5.37 mg 100 grams Niacin Rolls, dinner, plain, commercially prepared (includes brown-and-serve) 5.37 mg 100 grams Niacin Fast foods, hamburger; double, regular, patty; plain 5.36 mg 100 grams Niacin Beef, round, top round steak, separable lean and fat, trimmed to 1/8" fat, all grades, cooked, broiled 5.36 mg 100 grams Niacin Pork, fresh, loin, center rib (roasts), boneless, separable lean only, cooked, roasted 5.35 mg 100 grams Niacin APPLEBEE'S, 9 oz house sirloin steak 5.35 mg 100 grams Niacin Mushrooms, white, microwaved 5.35 mg 100 grams Niacin Chicken, broilers or fryers, neck, meat and skin, cooked, fried, flour