Vitamin B2 is, also known as Riboflavin, is an important vitamin that also acts as an antioxidant within the body. Vitamin B2 is responsible for maintaining healthy blood cells, helping to boost energy levels, facilitating in a healthy metabolism, preventing free radical damage, contributing to growth, protecting skin and eye health, and even more. This vitamin is proven to help prevent headaches including migraines, helps support eye health, can help prevent and treat anemia, is needed for maintaining proper energy levels, provides antioxidant properties, defends against cancer, and protects healthy hair and skin. The RDA for adult males is 1.3 mg/day and 1.1 mg/day for women, while children and infants require less. For those who suffer from a known riboflavin deficiency. Signs of a Vitamin B2 deficiency can include : Anemia, fatigue, nerve damage, a sluggish metabolism, mouth or lip sores or cracks, skin inflammation and skin disorders, especially around the nose and face, inflamed mouth and tongue, sore throat, swelling of mucus membranes, changes in mood, such as increased anxiety and signs of depression. There are few potential side effects from high doses of riboflavin. The most serious side effects concern an increased rate of allergic reactions in patients taking high doses of riboflavin. Symptoms of allergic reactions include swelling of the face or tongue, hives and difficulty breathing. Riboflavin can also cause a harmless yellow-orange discoloration of your urine.