Maintaining good health is a matter of giving your body what it needs to function at its highest level. B vitamins are important as they help to contribute to your overall health in a number of ways. B vitamins can be used for the breakdown of carbohydrates into glucose- providing energy for the body. Kelkin vitamin B complex is a complete formula that contains the eight essential B vitamins which make up the B complex family.Kelkin one a day B complex formula also contains choline bitartrate. inositol – PABA.