Written by Maria Gabrielle, Migraine Health Writer & Researcher
Riboflavin, also known as vitamin B2, is a water-soluble vitamin found naturally in a range of foods and available in supplements. It is often discussed in migraine prevention because of its role in cellular energy production. However, riboflavin is not a cure for migraine and should not replace a personalised plan from a GP, pharmacist or migraine specialist.
The NHS includes vitamin B2 among options that may be considered to help prevent migraine attacks. The right approach depends on your symptoms, medical history, medicines and the pattern of your attacks.
You can also look up Riboflavin (Vitamin B2) and related migraine terms in our Migraine A-Z Glossary.
What is riboflavin?
Riboflavin is an essential B vitamin. In the body, it helps form two coenzymes called flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD). These coenzymes are involved in energy production and normal cellular function.
Riboflavin is found in foods including milk, yoghurt, eggs, almonds, lean meat, mushrooms, fortified cereals and leafy vegetables. A varied diet remains the foundation of good nutrition, whether or not you choose to discuss supplements with a healthcare professional.
Why is vitamin B2 studied in migraine?
Migraine is a complex neurological condition. Researchers are investigating whether altered mitochondrial energy metabolism may play a role for some people with migraine. Because riboflavin is required for normal mitochondrial function, it has been studied as one possible part of a preventive approach.
This does not mean that everyone with migraine has a riboflavin deficiency or that a supplement will work for every person. Migraine prevention is individual, and many people need a combination of medical care, lifestyle adjustments and trigger management.
What does the research say?
A small randomised, placebo-controlled study involving 55 adults explored 400 mg of riboflavin daily over three months. The study reported fewer migraine attacks and headache days in the riboflavin group than in the placebo group. Other studies have produced mixed findings, so the evidence should be viewed as promising but not conclusive for every individual.
Importantly, this research looked at regular use over time. Riboflavin is not designed as a fast-acting option to stop a migraine attack once it has started.
Food intake compared with the research dose
The amounts of riboflavin found in food are useful for everyday nutrition, but they are much lower than the 400 mg daily amount used in the adult clinical study. The figures below are approximate and can vary by food type, preparation and serving size.
| Source or context | Typical riboflavin amount | What this means |
|---|---|---|
| Milk, around 240 ml | About 0.5 mg | A useful dietary source of riboflavin. |
| One large egg | About 0.2 mg | Can contribute to daily dietary intake. |
| Almonds, around 30 g | About 0.3 mg | A plant-based source of riboflavin. |
| Adult clinical research | 400 mg daily for three months | A research dose, not a personal dosage recommendation. |
If you are considering a high-dose riboflavin supplement, speak to a GP or pharmacist first. They can help you decide whether it is suitable alongside your current medicines, supplements and migraine plan.
A practical way to discuss riboflavin for migraine
- Start with a migraine diary. Record migraine days, severity, aura, possible triggers, acute medicines and the impact on daily life.
- Discuss your symptoms with a healthcare professional. This is especially important if your attacks are new, changing, severe, difficult to control, or happening more than once a week.
- Review your current routine. Include all prescribed medicines, over-the-counter products and supplements so that your GP or pharmacist can assess the full picture.
- Avoid changing everything at once. A clear, agreed plan makes it easier to understand what is helping and what is not.
- Give prevention strategies time. The best-known adult riboflavin study followed participants for three months, so it is not something to judge after only a few days.
Riboflavin as part of wider migraine support
Supplements are only one potential part of migraine management. The NHS also highlights practical habits such as identifying personal triggers, eating regular meals, staying hydrated, getting enough sleep, managing stress and keeping a migraine diary. For a broader overview, read our Natural Migraine Prevention Guide.
Some people explore other nutrients alongside riboflavin, such as magnesium or CoQ10. Do not assume that combining several supplements will be more effective. A GP or pharmacist can help you review the total ingredients and doses, particularly if you take medicines or have another health condition.
Safety and when to speak to a doctor
Riboflavin is generally well tolerated, but a high-dose supplement is still worth discussing with a healthcare professional. Bright yellow urine can occur because excess riboflavin may be excreted in urine. This is commonly reported, but speak to a pharmacist or GP if you are concerned or develop other symptoms. You can also read our guide to riboflavin 400 mg safety and side effects.
Speak to a GP, pharmacist or midwife before starting riboflavin if you are pregnant, breastfeeding, managing a medical condition, taking regular medicines, or considering a supplement for a child or teenager.
Seek urgent medical advice if a migraine attack lasts longer than 72 hours, aura lasts longer than one hour, or you are pregnant or have recently given birth. Call 999 for a sudden and extremely painful headache, new weakness, speech or vision problems, confusion, a seizure, or a headache following a head injury.
Frequently asked questions
What is riboflavin?
Riboflavin is vitamin B2, a water-soluble B vitamin that helps form coenzymes involved in normal energy metabolism and cellular function.
Why is riboflavin studied for migraine?
Researchers are investigating riboflavin because it supports mitochondrial function, and altered energy metabolism may play a role in migraine for some people.
What amount of riboflavin has been studied for migraine?
An often-cited adult study used 400 mg of riboflavin daily for three months. This is a research dose, not a recommendation that will suit everyone.
How long might it take to assess whether riboflavin is helpful?
Riboflavin is not intended for immediate relief during an attack. The adult clinical study followed participants for three months, so any review should be agreed with a healthcare professional and based on a migraine diary.
Does riboflavin change urine colour?
It can. Bright yellow urine is commonly reported after higher riboflavin intake because excess riboflavin may be excreted in urine.
Can I get riboflavin from food?
Yes. Foods such as milk, yoghurt, eggs, almonds, lean meats, mushrooms and fortified cereals can contribute to your riboflavin intake. Food amounts are much lower than the amount used in high-dose migraine research.
Can I combine riboflavin with magnesium or CoQ10?
Some people do, but it is sensible to speak to a GP or pharmacist before combining supplements. They can help check the total ingredients, doses and your wider treatment plan.
Can I take riboflavin during pregnancy or breastfeeding?
Speak to your GP, pharmacist or midwife before starting any high-dose supplement during pregnancy or while breastfeeding.
Is riboflavin an acute treatment for a migraine attack?
No. Riboflavin research focuses on regular use as part of a preventive plan rather than fast relief once a migraine attack has started.
For more general questions about MigraSoothe products and supplements, visit our FAQs.
Product information
To check current ingredients, serving information and directions, visit the MigraSoothe Original Vitamin B2 Riboflavin 400 mg product page. This link is provided for product information only and is not a substitute for individual medical advice.
Sources and further reading
- NHS: Migraine
- NICE: Headaches in over 12s: diagnosis and management
- Schoenen et al. (1998): Effectiveness of high-dose riboflavin in migraine prophylaxis
- NIH Office of Dietary Supplements: Riboflavin fact sheet for health professionals
Important: This article is for general information only. MigraSoothe products are food supplements, not medicines. They do not diagnose, treat or cure migraine. Always speak to a qualified healthcare professional about symptoms, medicines and supplements.