Magnesium for Migraines: Supplement Guide
Most supplements marketed for migraine have thin evidence and confident marketing. Magnesium is one of the exceptions. It is cheap, widely available, well tolerated by most people, and backed by enough research that the major headache societies actually recommend it. That does not make it a cure, and it does not work for everyone — but if you are going to try one supplement for migraine prevention, magnesium is the most defensible place to start.
This guide covers which form to take, how much, how long it takes, and who is most likely to respond.