Value Per Nutrient Food 2.52 mcg 100 grams Vitamin B-12 Lamb, variety meats and by-products, lungs, cooked, braised 2.51 mcg 100 grams Vitamin B-12 Beef, composite of trimmed retail cuts, separable lean and fat, trimmed to 0" fat, all grades, cooked 2.51 mcg 100 grams Vitamin B-12 Lamb, domestic, leg, shank half, separable lean and fat, trimmed to 1/4" fat, choice, raw 2.51 mcg 100 grams Vitamin B-12 Beef, rib eye, small end (ribs 10-12), separable lean only, trimmed to 0" fat, select, raw 2.50 mcg 100 grams Vitamin B-12 Fish, sturgeon, mixed species, cooked, dry heat 2.50 mcg 100 grams Vitamin B-12 Energy drink, ROCKSTAR 2.50 mcg 100 grams Vitamin B-12 Lamb, domestic, leg, sirloin half, separable lean and fat, trimmed to 1/8" fat, choice, raw 2.50 mcg 100 grams Vitamin B-12 Cereals ready-to-eat, GENERAL MILLS, FIBER ONE, Shredded Wheat