Updated October 2026
Headaches and migraines are among the most common reasons people search for information about CBD. Migraine alone affects around one in seven people in the UK. Here is an honest overview.
What does the evidence say?
Most research into cannabinoids and headaches has looked at cannabis products containing THC, at doses and in forms that are not legal or available as UK food supplements. There is very little high-quality research on CBD supplements alone. CBD food supplements are not authorised to treat or relieve headaches or migraines, and UK brands are not allowed to claim they do.
Common headache triggers to look at
- Dehydration: aim to drink regularly through the day.
- Irregular meals and sleep.
- Too much caffeine, or suddenly cutting back.
- Long periods at a screen without breaks.
- Stress and tension in the neck and shoulders.
Keeping a simple diary of when headaches happen can help you and your GP spot patterns.
When to get medical advice
See your GP if you have frequent headaches, headaches that are getting worse, or if painkillers are not working. Taking painkillers too often can itself cause headaches. Call 999 or go to A&E if a headache is sudden and severe, or comes with confusion, weakness, problems with speech or vision, or a stiff neck and rash.
The NHS migraine page and The Migraine Trust are excellent sources of support.
If you use CBD
If you enjoy CBD as part of your routine, stay within 10mg a day, and check with your GP or pharmacist if you take any medication, including migraine medicines.
This article is for general information only and is not medical advice. CBD products sold in the UK are food supplements or cosmetics, not medicines, and are not intended to diagnose, treat, cure or prevent any disease. The Food Standards Agency (FSA) advises healthy adults to take no more than 10mg of CBD per day from all sources. Do not use CBD if you are pregnant, breastfeeding or trying to conceive, and speak to your GP or pharmacist first if you take any medication.
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