“Riboflavin?”Here!Vitamin B2
Appears in 2 scanned products.
As a supplement
Talk to your doctor or pharmacist.
Roll Call does not check drug interactions or assess personal safety.
Riboflavin is a water-soluble B vitamin involved in energy production and in the function of other B vitamins in the body. It is naturally found in dairy, eggs, meat, and green vegetables.
Why it’s used
Taken to meet daily riboflavin requirements, and sometimes explored at higher doses for migraine.
What the evidence is for
correcting riboflavin deficiency.
What the evidence says
NIH ODS confirms riboflavin's role in preventing deficiency, which is rare in people eating a varied diet. Separately, some clinical trials have tested riboflavin at doses well above nutritional needs for migraine prevention, with mixed and not fully consistent results.
Dose studied
1.1–1.3 mg — adult RDA, per NIH ODS.
Context
Adult daily intake recommendations run 1.1 to 1.3 mg. Migraine studies have used doses around 400 mg per day, far above nutritional requirements, and this use is a distinct research question from ordinary deficiency prevention.
Rumors
Correcting riboflavin deficiency, which causes cracked lips and sores at the corners of the mouth, sore throat, itchy red eyes, hair loss and skin disorders.
Supports — establishedhealth and safety evidence
Studied in: people with riboflavin transporter deficiency (a rare genetic disorder causing riboflavin deficiency).
Measured as an outcome.
- Riboflavin - Health Professional Fact Sheet (Regulatory) · Funding not checked
How much is a reference amount
- 1.1 mg a dayfor adults 19 and over, women · Recommended Dietary Allowance
No upper limit has been set — the data was not sufficient to set one, which is a gap in the research rather than a finding about safety.
- 1.3 mg a dayfor adults 19 and over, men · Recommended Dietary Allowance
No upper limit has been set — the data was not sufficient to set one, which is a gap in the research rather than a finding about safety.
The legacy corpus stored this as a range, 1.1–1.3 mg. It is not a range: it is the RDA for women and the RDA for men. No UL was set.
Every applicable line is shown because we don’t know which one is yours, and a reference intake is a target for a population, not a threshold for harm.