Psilocybin and food timing — managing nausea and optimizing onset
71 replies · Harm Reduction
Nausea in the first hour is a common psilocybin experience. I've heard conflicting advice about eating before a session — some say fast completely, some say eat lightly. What's actually the best approach for onset timing and nausea reduction?
The pharmacological case for fasting (4+ hours): psilocybin absorption is faster and more complete on an empty stomach, producing a faster onset and potentially more consistent effect. Most clinical trials recommend 4-hour fast before sessions for this reason. The downside: nausea can be more pronounced without food in the stomach.
For nausea reduction specifically: ginger (ginger tea, crystallized ginger, or ginger capsules) 30-60 minutes before is well-supported anecdotally. Lemon tek (grinding mushrooms and soaking in lemon juice for 20 minutes before consuming) converts psilocybin to psilocin before ingestion — faster onset but also reported to reduce nausea in some users. Chamomile tea before the session is another common approach.
The nausea is largely physical: chitin in the mushroom fruiting bodies (the structural cell wall material) is hard to digest and causes GI irritation. This is why synthetic psilocybin in clinical trials causes significantly less nausea — no chitin. Grinding dried mushrooms finely and encapsulating, or using lemon tek, reduces chitin in its most problematic form.
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