How to Prepare for Your First Ayahuasca Retreat: The Dieta Explained
Every ayahuasca center will tell you to follow “the dieta” before you arrive. Far fewer will tell you why, which turns a safety requirement into something that sounds like a purity ritual. So here is the why, first: the ayahuasca vine contains MAO inhibitors. That is what makes the brew work, and it is also what makes certain foods and medications genuinely risky in combination.
The pharmacology behind the food list
Monoamine oxidase is the enzyme your body uses to break down tyramine, a compound concentrated in aged, fermented and cured foods. When the vine inhibits that enzyme, tyramine-rich foods can drive blood pressure sharply upward – the same interaction documented for decades in patients on prescription MAOI medications. That is why aged cheese, soy sauce, kombucha and cured meats leave the menu. It is chemistry, not cleansing.
The same mechanism is why medication review matters more than food. SSRIs, SNRIs, lithium, tramadol, triptans and stimulants all interact with MAO inhibition in ways that range from unpleasant to dangerous, which is why our screening protocol reviews every medication individually and plans any taper with your own prescriber. Research programs like the Johns Hopkins Center for Psychedelic and Consciousness Research apply the same logic: careful pharmacological screening before anyone is dosed with anything.
The three-week timeline we send our guests
Three weeks out: alcohol stops entirely, fermented foods come off the menu, and salt and sugar come down. Two weeks out: pork and red meat go, and sexual activity pauses. Throughout: no recreational substances of any kind, including cannabis, and caffeine tapers down gradually rather than stopping abruptly – quitting coffee cold the week before a retreat just adds a withdrawal headache to an already demanding stretch.
We send a day-by-day plan and a grocery list written for US supermarkets three weeks before your arrival date, so none of this requires guesswork. During the week, the kitchen handles it. Afterwards, hold the dieta one more week at home and reintroduce foods slowly.
The one rule that matters more than all the others
If you cannot hold the dieta on the dates we give you, say so, and we will move you to a later week without drama. Arriving having broken it and staying quiet is the one choice that genuinely puts you at risk, because the physician is now working from wrong information. Honesty is the actual preparation; the food list is just its schedule. If you are unsure whether something in your routine counts – a supplement, a medication, a habit – the team would rather answer the question in an email now than discover it at intake.