Slightly off topic, but I have found a Vitamin B supplement all but eliminated my migraines. I was getting them every 1-2 weeks and then, after taking Vitamin B regularly (to counteract alcohol consumption during the festive season), I realised I hadn't had one in ages, despite running on reduced sleep (which seems to be my main trigger).

Anyway, I always make this comment anywhere I can because migraines are horrible, vitamins are cheap and maybe it will help someone else (obviously anecdotal; sample size of 1; I can't find any supporting research etc).

There are studies that support this: https://pubmed.ncbi.nlm.nih.gov/33779525/

Conclusions: A pooled analysis of available randomized controlled clinical trials demonstrated that Vitamin B2 400 mg/day for three months supplementation had significant effect on days, duration, frequency, and pain score of migraine attacks.

For some months I've been taking 200 mg/day and it reduced the frequency of my migraine attacks in half.

Vitamin B2 (Riboflavin) in particular can be helpful for those with migraines. But it seems like it only effects those with migraines headaches, and not migraine auras. Did nothing for me :-(

Also N=1, but I remember coming across some research that confirmed this when I was taking the supplements.

Which B vitamin(s)? there are a number of them.