Value Per Nutrient Food 2.76 mcg 100 grams Vitamin B-12 Pork, fresh, variety meats and by-products, spleen, cooked, braised 2.76 mcg 100 grams Vitamin B-12 Beef, rib, whole (ribs 6-12), separable lean and fat, trimmed to 1/8" fat, prime, raw 2.76 mcg 100 grams Vitamin B-12 Lamb, domestic, leg, sirloin half, separable lean only, trimmed to 1/4" fat, choice, raw 2.75 mcg 100 grams Vitamin B-12 Pork, fresh, variety meats and by-products, lungs, raw 2.75 mcg 100 grams Vitamin B-12 Beef, short loin, top loin, steak, separable lean and fat, trimmed to 1/8" fat, prime, raw 2.75 mcg 100 grams Vitamin B-12 Beef, rib, large end (ribs 6-9), separable lean and fat, trimmed to 1/8" fat, select, raw 2.75 mcg 100 grams Vitamin B-12 Lamb, Australian, imported, fresh, leg, shank half, separable lean and fat, trimmed to 1/8" fat, raw 2.74 mcg 100 grams Vitamin B-12 Beef, chuck eye steak, boneless, separable lean and fat, trimmed to 0" fat, choice, raw