My body regurgitates spinach almost immediately, so I avoid it. Peanuts often do the same as well as baked goods and it can be a painful situation, but I can't figure out how to narrow down the actual problem. Spinach is definitely a no-go, but even a small piece of gluten-free vegan cake can make me sick. Does anyone see a link? I've never become swollen from foods, so I don't think it's an allergy, but I'm baffled.