B Vitamins are a group of eight water-soluble vitamins that play an important role in cell metabolism. Niacin (6 letters), also known as Vitamin B3, is essential for the proper functioning of the nervous system and digestive system. Folic acid (5 letters) is a form of Vitamin B9 that helps the body make healthy new cells and is especially important during periods of rapid growth such as infancy and pregnancy. Thiamin (7 letters), or Vitamin B1, is essential for the body to use carbohydrates as energy and helps maintain healthy nerve and muscle cells. Folate (6 letters) is a form of Vitamin B9 found naturally in some foods and is important for making DNA and other genetic material. Finally, Niacin (6 letters) is a form of Vitamin B3 that helps the body convert food into energy.