Vitamin B2 (Riboflavin)
vitamin
ApprovedGeneral information about nutrients. No diagnosis, no medical advice. If you take medication, are pregnant or have a medical condition, talk to your doctor before taking supplements.
Overview
Water-soluble B vitamin. Riboflavin contributes to normal energy-yielding metabolism. Riboflavin contributes to the protection of cells from oxidative stress.
Interactions
Riboflavin (B2) is needed for iron mobilization from ferritin stores and for the function of iron-containing flavoproteins in the electron transport chain.
Research status
Riboflavin acts as a cofactor for the enzyme glutathione reductase.
Top 5 food sources
Expert opinions
Dr. Strunz
Strunz emphasizes riboflavin (B2) as the rate-limiting cofactor for glutathione reductase, the enzyme that regenerates reduced glutathione. Riboflavin contributes to the protection of cells from oxidative stress. He recommends 20 to 50 mg of the activated form riboflavin-5-phosphate (R5P) within a complete B-complex. Bright yellow urine after dosing is a harmless excess-excretion marker.
Recommended dose: 20–50 mg
Source: Dr. Strunz
Expert profiles summarise publicly available statements. The named people do not cooperate with Stackwell and have not authorised these summaries. Not medical advice.
Water-soluble with very low toxicity. Excess excreted in urine.