Migraines run in my family and a lot of my friends have them (so this is a large anecdote, not research). From that experience, I think "likely" is a bit of a s

Migraines run in my family and a lot of my friends have them (so this is a large anecdote, not research). From that experience, I think "likely" is a bit of a strong term for these triggers. The common factors are pretty clear in this thread: Strong sensory stimuli (visual/auditory, sometimes smell), stress and poor lifestyle habits (little sleep, little exercise, etc). These things are "likely" triggers - most people report one or more of these. The word you're looking for is "possible". Along with that I'd like to point out nutritional advice is always an option, but in practice it is so personal that it's best taken with a healthy amount of skepticism.