Magnesium and Migraine: What the Research Actually Shows

If you've spent any time researching migraine, you've almost certainly come across magnesium.

It's recommended constantly — but how much of that is genuinely supported, and how should you actually think about it?

What the Evidence Suggests

Some evidence exists supporting magnesium supplementation as part of migraine prevention strategies, alongside other options like riboflavin and ubidecarenone (CoQ10).

It's generally considered among the gentler, lower-risk options worth discussing with your doctor, particularly as an adjunct to other preventive strategies rather than a standalone solution.

Magnesium plays a role in nerve function and may influence the excitability of neurons — relevant to migraine, which involves changes in nerve and brain activity during an attack.

Some research has also suggested that people with migraine may be more likely to have lower magnesium levels, though this isn't universal.

Important Context

It's worth being realistic here: magnesium isn't a guaranteed fix, and it isn't going to outweigh the impact of poor sleep, chronic stress, or significant sensitisation on your overall threshold.

Think of it as one small, supportive piece of a much bigger picture — not a replacement for addressing the bigger threshold factors.

Getting Magnesium Through Food First

Before reaching for a supplement, it's worth considering food sources, which come with the added benefit of other nutrients:

• Leafy green vegetables, such as spinach and kale
• Nuts and seeds, such as almonds, pumpkin seeds, and cashews
• Legumes
• Whole grains

Magnesium and Stress — A Useful Combination

One simple, low-cost approach worth considering: an Epsom salt bath.

Epsom salt is magnesium sulfate, and a warm bath serves a dual purpose — it may support magnesium levels through skin absorption, though the evidence here is mixed, and the warmth and stillness of a bath is itself a genuine stress-reduction and nervous system regulation tool, regardless of the magnesium question.

Sometimes the most useful interventions work on more than one level at once.

Should You Take a Supplement?

This is genuinely a conversation to have with your doctor or pharmacist rather than something to self-prescribe based on a blog post, including this one.

Magnesium supplements can interact with certain medications and aren't appropriate for everyone, particularly people with certain kidney conditions.

If you're interested in trying it, raise it with your GP, who can advise on appropriate dosing and check for any relevant contraindications.

The Bigger Picture

Magnesium is one small piece of a larger puzzle.

If you're looking at supplements before you've addressed sleep consistency, chronic stress, or significant avoidance patterns, you're likely focusing on the smaller lever before the bigger ones.

That's not to say magnesium isn't worth considering — just that it works best as part of a broader approach, not a substitute for one.

This is exactly the kind of "big picture first, supporting details second" thinking that runs through Raise Your Threshold, my 8-week program.

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