The Tonic is composed of a complex of Vitamin B, Vitamin B1 and Vitamine B2 that works with other B vitamins to help release the energy from the ingested food. Vitamin B3 is also important in the process of releasing energy from ingested foods but it also plays an important role in the formation of red blood cells. For its part, iron is very important for the body because it allows the transport of oxygen in the blood.