Vitamin B12, also known as cobalamin, is a water-soluble vitamin that plays a crucial role in many bodily functions. It is important for the formation of red blood cells, DNA synthesis, and proper functioning of the nervous system. Vitamin B12 is involved in converting food into energy, so it helps prevent fatigue and maintains proper metabolism.

Our bodies cannot produce Vitamin B12, which means we need to get it from our diet. Good sources of Vitamin B12 include animal-based foods such as meat (like beef, chicken, and pork), fish (like salmon and trout), eggs, and dairy products. Some fortified plant-based foods, like breakfast cereals and plant-based milks, also contain Vitamin B12.

Deficiency of Vitamin B12 can lead to fatigue, weakness, and even anemia. Vegetarians and vegans who do not consume animal-based foods are at a higher risk of developing Vitamin B12 deficiency, so they may need to take supplements or consume fortified foods to meet their B12 needs.