Low B12 = High Homocysteine = Higher Heart Attack Risk , Your body needs vitamin B12, folate (B9), and B6 to recycle homocysteine into safer molecules. If these nutrients are low, homocysteine can Super Vitamin B 12 5500 wood enterprises Methylated B Complex Vegetarian Capsules Vitamin B12 helps keep many parts of your body healthy, including your heart, eyes, bones, hair, nails, and skin. Learn how you can get all the vitamin B12 your body needs with Low B12 levels can lead to fatigue, numbness, irritability, and moreyet many people don't realize they're deficient. The good news? Testing and treatment are simple with options like injections or dissolvable tablets.