Vitamin B12-Rich Foods

Food Serving size Amount per serving
Beef liver 3 ounces 70 mcg
Clams (canned) 3 ounces 16 mcg
Cereal (fortified) 1 cup ~6 mcg
Salmon (Atlantic, baked) 3 ounces 2.6 mcg
Tuna (canned in water) 3 ounces 2.2 mcg
Ground beef (85% lean, cooked) 3 ounces 2.2 mcg

*For a complete list of vitamin B12 rich foods, see the USDA Food Composition Databases