Shrooms and Supplements: What to Take and Skip

Not medical advice. Harm reduction information for people who have already decided to use. In an emergency, call your local emergency number. Some links are affiliate links; we may earn a commission at no cost to you.

Contents

Why the MDMA protocol does not carry over
Before: the short list
After: recovery, not neuroprotection
The Stamets Stack, honestly
Niacin and your liver
What to actually avoid
What actually determines how it goes
Sources

If you came looking for a psilocybin version of the MDMA supplement stack, most of it does not transfer, because the problem it was built to solve does not exist here. The MDMA protocol targets oxidative stress, serotonergic terminal damage and hyperthermia. Psilocin is a direct 5-HT2A agonist rather than a monoamine releaser, so there is no serotonin dump to oxidise anything and no depletion to refill afterwards.

Pre-loading antioxidants and post-loading 5-HTP around a mushroom trip solves a problem you do not have. What actually helps is short, and most of it is not a supplement.

Why the MDMA protocol does not carry over

The MDMA supplements protocol has real pharmacological reasons behind it. MDMA reverses the serotonin transporter and forces a large release. Dopamine gets taken into serotonin terminals during that process and oxidises there, generating reactive oxygen species, usually in a hot room with hours of exertion stacked on top. That is what the R-ALA and vitamin C pre-load aims at, on the strength of rat studies in which injected antioxidants prevented serotonergic deficits. The 5-HTP afterwards aims at the depletion.

Psilocin does none of it. It binds 5-HT2A receptors and activates them directly, without releasing anything or blocking reuptake, so it does not raise the serotonin sitting in the synapse. That same pharmacology is why serotonin toxicity from a classic psychedelic without an MAOI is a low-risk scenario, as a 2021 review of the mechanism concluded. Nichols’ survey in Pharmacological Reviews describes classic psychedelics as generally physiologically safe and non-dependence-forming, and no human study has found the serotonergic terminal damage that has been argued for heavy MDMA use.

So the neuroprotection framing has nothing to attach to. These supplements are not dangerous. They are aimed at nothing.

Before: the short list

A light stomach. This is the real nausea intervention. A meta-analysis of therapeutic psilocybin trials put nausea at a relative risk of 8.85 against placebo, higher than any other acute adverse effect it measured, with everything resolving inside 48 hours. Fasting 3 to 4 hours beforehand cuts it down and gives a cleaner come-up. A heavy meal pushes onset past 90 minutes, which is exactly where people make the redosing mistake described in the psilocybin timeline.

Ginger, beforehand. The one supplement here with a real evidence base, though the trials are for surgical and pregnancy nausea rather than mushrooms. A meta-analysis of five randomised trials in 363 patients found 1 g or more reduced postoperative nausea and vomiting at a relative risk of 0.69; a separate meta-analysis of 12 trials in 1,278 pregnant women found significant improvement in nausea, though not in vomiting episodes, with no safety signal. Extrapolating to mushroom nausea is an assumption, but a low-risk one. Ginger capsules 30 to 60 minutes before dosing sit better on an empty stomach than a large volume of tea.

Water, in ordinary amounts. Psilocybin does not carry MDMA’s hyponatremia risk, so there is nothing to force and nothing to restrict.

That is the whole list. No antioxidants, no amino acids, no nootropics. Preparation for a mushroom session is behavioural, and it is covered in the safe trip guide.

After: recovery, not neuroprotection

Electrolytes if you vomited. Throwing up during the come-up is common and usually stops once the peak arrives. If it happened more than once, an electrolyte powder replaces what plain water cannot. Rehydration, nothing more.

Food, once you want it. Appetite comes back reliably during the descent.

Sleep support if you need it. Most people can sleep once the effects end, unlike after MDMA or LSD, but a late or intense session can leave you wired. A meta-analysis of 19 placebo-controlled trials in 1,683 people found melatonin shortened sleep onset and improved sleep quality, with effects the authors themselves called modest. Low-dose melatonin at 0.5 to 1 mg is the place to start, and the 10 mg products on shelves go well past what the evidence supports. Magnesium glycinate is low-risk on thinner evidence, though the jaw-clenching rationale that justifies it around MDMA does not apply here, since psilocybin does not cause bruxism.

Not 5-HTP. There is nothing to replenish.

The Stamets Stack, honestly

The stack pairs a psilocybin microdose, commonly 0.1 g of dried mushroom, with lion’s mane and niacin, usually four days on and three off. The stated logic: lion’s mane drives nerve growth factor, psilocybin drives neuroplasticity, and niacin’s vasodilation distributes the other two.

Lion’s mane on its own has genuine preclinical data. Its hericenones and erinacines induce NGF synthesis, demonstrated in human astrocytoma cell culture and confirmed in mouse hippocampus. That is in vitro and rodent work, the bottom rungs of the evidence ladder. There is one small human trial, a double-blind placebo-controlled study in 30 adults with mild cognitive impairment, which found improved cognitive scores over 16 weeks that were gone four weeks after stopping. Thirty people is a pilot. Lion’s mane is low-risk if you want to try it, but no controlled human trial has ever tested it combined with psilocybin, and the neurogenesis claims made for the stack have not been measured in a person.

The niacin part is worse. No human data supports the idea that a flush ferries psilocin or lion’s mane compounds across the blood-brain barrier. Psilocin crosses without help, and niacin’s vasodilation is cutaneous, which is why you feel it in your face and chest rather than your head.

The stack also inherits microdosing’s own evidence problem, since placebo-controlled work has struggled to separate real effects from expectancy. That is covered in the microdosing guide.

Niacin and your liver

Niacin hepatotoxicity is real, well documented, and depends on both dose and formulation. The adult dietary requirement is around 14 to 16 mg a day. Above 500 mg daily, transient asymptomatic liver enzyme elevations appear in up to 20 percent of people, and serious injury becomes common above 3 g a day, which is the lipid-lowering range.

Formulation matters more than dose. Rader and colleagues found that at doses producing equivalent lipid reductions, hepatic toxicity occurred more often with time-release preparations than with unmodified niacin, with liver signs showing up inside a week in some patients. Dalton and Berry documented severe hepatic dysfunction two days after a patient switched from crystalline to sustained-release niacin at the same dose. Fulminant hepatic failure requiring transplant has been reported.

The doses usually quoted for the stack, 100 to 200 mg and sometimes as low as 25 to 50 mg, sit below where injury has been documented. Two habits move people into the risk zone anyway. One is escalating to chase the flush, since the flush is the point and tolerance to it builds within days of daily use. The other is buying a time-release or flush-free product, which is precisely the formulation with the worst record, and taking it four days a week for months.

Given that the reason for including niacin is unsupported in the first place, leave it out. A sudden hot, red, itchy flush arriving 20 minutes into a psychedelic is also very easy to misread as something going badly wrong.

What to actually avoid

Lithium. The hard stop. An analysis of 62 reports of lithium combined with a classic psychedelic found 47 percent described a seizure. Detail in LSD and lithium.
MAOIs, including phenelzine, tranylcypromine, moclobemide, selegiline, linezolid and harmala alkaloids. They potentiate rather than blunt, unpredictably, and they are the one context where serotonin toxicity risk becomes real.
Tramadol. Serotonergic and independently lowers the seizure threshold.
St John’s Wort. People forget a herbal supplement counts as a drug interaction. It is serotonergic and broadly induces CYP enzymes, which affects other medications too.
SSRIs and SNRIs. Not dangerous so much as disappointing: around half of users report weaker effects than expected. Do not stop your medication to trip, and do not take more to compensate. See shrooms and antidepressants.

Run any combination through the interaction checker before you plan a session.

What actually determines how it goes

Dose, set, setting, and what you do with it afterwards. None of that is purchasable, which is most of why antioxidant stacks appeal: they offer something concrete to do about a risk that, for psilocybin, is mostly psychological rather than chemical. The real risk management is dose accuracy, and dropping the dose whenever you change the delivery method, as with lemon tek.

Before: empty stomach, ginger, water. After: electrolytes if you were sick, food, sleep support if you need it. Lion’s mane is fine to take, as long as you know the combination it is famous for has never been tested in a controlled human study. The rest is in the psilocybin guide.

Sources