Vitamin B2 (riboflavin) helps support the body's formation of red blood cells and antibodies. It plays a key role in pregnancy, as insufficient levels of B2 in the body can lead to damage in a developing fetus. Healthy levels of the B2 also help relieve cramps related to pregnancy and may help decrease the risk of postpartum depression. Vitamin B2 is especially critical for energy production. In higher doses (75-400 mg/day) it has been repeatedly shown to decrease migraine frequency by 67% after 6-12 weeks.
Symptoms of vitamin B2 deficiency are sometimes evident as cracks and sores around the corners of the mouth and skin lesions.