Mega B-100 is a timed release supplement that provides an excellent source of B vitamins. B vitamins support normal energy yielding metabolism (Vitamin B1, B2, B3, Pantothenic acid, B6 and B12) and the reduction of tiredness and fatigue (Vitamins B2, B3, Pantothenic acid, B6, B12). The formula releases nutrients over an extended period of time for longer lasting action. Thiamin (B1), Riboflavin (B2), Niacin (B3), vitamin B6 and vitamin B12 also contribute to the normal functioning of the nervous system. Mega B-100 is a timed release supplement that provides an excellent source of B vitamins. B vitamins support normal energy yielding metabolism (Vitamin B1, B2, B3, Pantothenic acid, B6 and B12) and the reduction of tiredness and fatigue (Vitamins B2, B3, Pantothenic acid, B6, B12). The formula releases nutrients over an extended period of time for longer lasting action. Thiamin (B1), Riboflavin (B2), Niacin (B3), vitamin B6 and vitamin B12 also contribute to the normal functioning of the nervous system.