Value Per Nutrient Food 5.24 mg 100 grams Niacin Beef, round, knuckle, tip center, steak, separable lean and fat, trimmed to 0" fat, select, raw 5.24 mg 100 grams Niacin Crackers, saltines, low salt (includes oyster, soda, soup) 5.24 mg 100 grams Niacin Crackers, saltines (includes oyster, soda, soup) 5.23 mg 100 grams Niacin Beef, round, bottom round, roast, separable lean only, trimmed to 0" fat, choice, cooked, roasted 5.23 mg 100 grams Niacin Pork, fresh, loin, center rib (chops), boneless, separable lean only, cooked, broiled 5.23 mg 100 grams Niacin Beef, rib, small end (ribs 10-12), separable lean and fat, trimmed to 1/8" fat, select, raw 5.23 mg 100 grams Niacin Beef, ground, 90% lean meat / 10% fat, loaf, cooked, baked 5.22 mg 100 grams Niacin Crackers, whole-wheat, reduced fat