Vitamin B is a group of water-soluble vitamins essential for various physiological processes in the body. While "vitamin B" is its common name, it's also known by other synonyms such as vitamin B-complex, vitamin B complex, vitamin B group, and vitamin B family. Vitamin B-complex comprises eight different B vitamins, including vitamin B1 (thiamin), vitamin B2 (riboflavin), vitamin B3 (niacin), vitamin B5 (pantothenic acid), vitamin B6 (pyridoxine), vitamin B7 (biotin), vitamin B9 (folic acid), and vitamin B12 (cobalamin). Each B vitamin has a unique role in the body, ranging from brain function, energy production, cell metabolism, and DNA synthesis. Ensuring your body receives adequate amounts of vitamin B-complex is vital to supporting overall health and well-being.