Vitamin B complex is a group of 8 distinct vitamins that coexist in the same foods and carry out similar functions.
The vitamin B-complex refers to all of the known essential water-soluble vitamins except for vitamin C. These include thiamine (vitamin B1), riboflavin (vitamin B2), niacin (vitamin B3), pantothenic acid (vitamin B5), pyridoxine (vitamin B6), biotin (vitamin B7), folic acid (vitamin B9) and the cobalamins (vitamin B12). They are present in same food.