Vitamin B2
Vitamin B2 is a water-soluble vitamin needed to process amino acids and fats, activate vitamin B6 and folic acid, and help convert carbohydrates into the fuel the body runs on—adenosine triphosphate (ATP). Under some conditions, vitamin B2 can act as an antioxidant.
- Reliable and relatively consistent scientific data showing a substantial health benefit.
- Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
- For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support.
Our proprietary “Star-Rating” system was developed to help you easily understand the amount of scientific support behind each supplement in relation to a specific health condition. While there is no way to predict whether a vitamin, mineral, or herb will successfully treat or prevent associated health conditions, our unique ratings tell you how well these supplements are understood by the medical community, and whether studies have found them to be effective for other people.
For over a decade, our team has combed through thousands of research articles published in reputable journals. To help you make educated decisions, and to better understand controversial or confusing supplements, our medical experts have digested the science into these three easy-to-follow ratings. We hope this provides you with a helpful resource to make informed decisions towards your health and well-being.
This supplement has been used in connection with the following health conditions:
| Used for | Amount | Why |
|---|---|---|
Anemia | 5 to 30 mg daily in divided doses |  [3 stars] Vitamin B2 deficiency can contribute to anemia, supplementing with this vitamin may restore levels and improve symptoms. |
Migraine Headache (For adults only ) | 400 mg daily | [3 stars] Studies have shown vitamin B2 to be effective at reducing the frequency and severity of migraine headaches.
|
Cataracts | 3 mg daily with 40 mg daily vitamin B3 |  [2 stars] Vitamin B2 is needed to protect glutathione, an important antioxidant in the eye. In one study, supplementing with vitamin B2 prevented cataracts in people who were deficient. |
High Homocysteine | 1.6 mg daily | [2 stars] Vitamin B2 (riboflavin) supplementation has been shown to lower homocysteine levels in certain people. |
Parkinson’s Disease | 30 mg three times a day | [2 stars] In one study, people with Parkinson’s disease who had vitamin B2 (riboflavin) deficiency and supplemented with riboflavin experienced improved motor capacity. |
Preeclampsia | Refer to label instructions |  [1 star] Women who are deficient in vitamin B2 (riboflavin) are more likely to develop preeclampsia than women with normal levels. Supplementation may correct a deficiency. |
Copyright © 2025 TraceGains, Inc. All rights reserved.
Learn more about TraceGains, the company.
The information presented by TraceGains is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2025.