Dr. Mercola's Vitamin B Complex is a unique and complete complex that provides the ideal proportion of the eight major B vitamins. B vitamins are important for your brain, nervous system, immune function, energy production, cell metabolism, organ and tissue health and much more. Low levels of B vitamins can affect your body in many different ways because of their far-reaching and interrelated effects. Some of the signs include: inability to sleep well, fatigue, GI symptoms, joint or muscle discomfort, mood swings, confusion and forgetfulness. 

Directions: Adults, as a dietary supplement, take two (2) capsules daily.