Vitamin B12 is an essential vitamin for the human body. Known for its energy-boosting properties, it can help improve energy levels, memory, and mental clarity. Vitamin B12 is found naturally in animal products like eggs, fish, and dairy. It can also be found in enriched grains, fortified cereals, and supplements. Getting enough Vitamin B12 in your diet is vital to maintaining good health. Talk to your doctor about how Vitamin B12 can be beneficial for you.