Vitamin B12 is an essential water-soluble nutrient, also known as cobalamin. It plays a vital role in the healthy functioning of many systems in the body, including:

• DNA (genetic material) synthesis

• Energy production (metabolism)

• Neurological (brain) function

• Nerve cell health

• Red blood cell (hemoglobin) formation

Vitamin B12 plays a key role in the normal functioning of the brain and nervous system. It’s also important in the formation of red blood cells. A lack of B12 can lead to anemia (not having enough red blood cells), causing you to feel tired and weak.