Vitamin B12

nutrition · body systems · essential vitamin

Builds Your DNA. B12 acts like a helper that your cells need to make DNA, the instruction manual inside every cell that tells your body how to grow and work.

Protects Your Nerves. This vitamin wraps your nerves in a special protective coating called myelin, kind of like insulation around an electrical wire, so messages can travel safely from your brain to your whole body.

Makes Red Blood Cells. B12 helps your bone marrow create healthy red blood cells that carry oxygen through your blood to keep your energy up.

Powers Your Metabolism. B12 is a cofactor that helps break down fats and proteins into fuel your body can actually use for energy.

Only in Animals. Unlike plants, animals need B12 to survive, which is why this vitamin is found in meat, eggs, and dairy but not in plants.