The decline in migraine pain may have been due to the elimination of dietary pain triggers such as meat and dairy products or by weight loss or hormonal changes brought on
[pcrm.org]
Royet, Olfaction et pathologies neurologiques : revue de la littérature, Revue Neurologique, 10.1016/S0035-3787(07)90387-2, 163, 2, (155-167), (2007). G.G.
[doi.org]
A weight loss program is recommended for obese individuals with migraine.
[ninds.nih.gov]