Does chocolate cause migraines?

No

Chocolate does not in itself cause migraines. However, every person has factors making them susceptible to migraines. Chocolate does contain tyramine, a monoamino that plays an indirect role in stimulating the sympathetic nervous system. When the isomers hereof are inadequate or are inhibited, the stacked up tyramine can cause the vasoactive amine to be released. These types of migraines are rare.