You mean, aside from the shellfish that puts me into anaphylactic shock?

Anything that spikes my blood sugar on an empty stomach lowers my seizure threshold. Doesn't give me szs per se, but makes me feel just as weird.
Donuts in the morning (mmmmm, dooonuttttts), soda as a snack, etc.

However, if all of my triggers are lined up in a row, a sugary snack on an empty stomach in the morning can push me right over the edge into a GM. Bleah.