Vitamin B isn't a single vitamin. It's made up of a total of eight essential B vitamins including vitamin B16, folate, vitamin B12, thiamin, riboflavin, niacin, pantothenic acid, and biotin.
B vitamins have many important functions and are vital for maintaining good health. B-complex vitamins usually contain the following: B1 (thiamine): Thiamine plays an essential role in metabolism by helping convert nutrients into energy.
Vitamin B-2 and the other B vitamins help your body build red blood cells and help give you energy.