Value Per Nutrient Food 6.23 mg 100 grams Niacin Lamb, domestic, leg, whole (shank and sirloin), separable lean only, trimmed to 1/4" fat, choice, raw 6.23 mg 100 grams Niacin Lamb, New Zealand, imported, frozen, foreshank, separable lean only, raw 6.23 mg 100 grams Niacin Pork, cured, ham with natural juices, slice, bone-in, separable lean and fat, unheated 6.23 mg 100 grams Niacin Beef, flank, steak, separable lean only, trimmed to 0" fat, select, raw 6.22 mg 100 grams Niacin Lamb, domestic, leg, shank half, separable lean and fat, trimmed to 1/4" fat, choice, raw 6.22 mg 100 grams Niacin Beef, round, tip round, roast, separable lean only, trimmed to 0" fat, all grades, raw 6.21 mg 100 grams Niacin Lamb, domestic, leg, shank half, separable lean and fat, trimmed to 1/8" fat, choice, raw 6.21 mg 100 grams Niacin Chicken, roasting, giblets, raw