Vitamin B12, also known as cobalamin, is a water-soluble vitamin with essential roles in several key bodily processes. The recommended daily allowance for Vitamin B12 varies by age and gender. Cobalamin is indispensable for nerve health, DNA synthesis, and red blood cell formation. It plays a pivotal role in maintaining cognitive function and is often associated with energy levels. A deficiency in Vitamin B12 can lead to anemia and neurological issues. Understanding the importance of cobalamin in brain health, energy metabolism, and overall well-being underscores its role in promoting vitality and a balanced diet.