Vitamin B-12 is an essential vitamin for blood and nerve cell health and can help increase your energy level, reduce fatigue, and improve your brain function and memory. Our Vitamin B-12 supplement is in chewable tablet form and is cherry-flavored. Vitamin B-12 is a nutrient that helps your body maintain healthy blood and nerve cells and create red blood cells and DNA, the genetic material that exists in all cells. Vitamin B-12 also helps prevent megaloblastic anemia, a form of anemia that makes people feel tired and weak. Many people struggle to absorb vitamin B-12 from food due to lack of hydrochloric acid in the stomach and pernicious anemia.