Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Vitamin B3 also known as niacin and nicotinic acid is one of 8 B vitamins which play an important role in cell metabolism, helping the body convert food into “fuel” and produce energy. Vitamin B3 is a water-soluble vitamin. It is not stored in the body, so it is recommended to consume it daily. A deficiency of vitamin B3 often leads to pellagra, a condition characterized by diarrhea, dermatitis, dementia and death. Recently, US scientists found that vitamin B3 could help treat infections from potentially deadly staph bacteria such as MRSA. Learn more about vitamin B3 and its properties, by reading this book.