Nausea is the most common physical side effect of eating psilocybin mushrooms. It is caused by the body struggling to break down chitin, the tough fiber that makes up mushroom cell walls.How to Prevent the "Mushroom Guts"Grind Them Up: Chew your mushrooms extremely well, or grind them into a powder before eating.Drink Tea: Hot water breaks down chitin before it hits your stomach.Ginger is Your Friend: Chew on fresh ginger or take a ginger capsule 30 minutes before dosing.Avoid Heavy Meals: Eat a light, easily digestible meal a few hours before your journey.