Hiya
I find my migraines are triggered by low blood sugar (skipping a meal), compounded by things like stress or tiredness.
Hence, Atkins seems to be doing wonders! My blood sugar is much more stable, so headaches in general are much rarer for me, and it seems the chances of triggering a migraine are much reduced!

Cheers
S
(edit: I got a bastard of a migraine on day 2 of induction... Just confirmed for me the blood sugar link)