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Every December the same claim goes round: Santa Claus is really a Siberian shaman, his reindeer fly because they ate fly agaric, and his red-and-white suit is a mushroom in disguise. Some of that story rests on real ethnography. Much of it collapses the moment you look at when and where the modern Santa was actually in...
Ask a child to draw a mushroom and you'll almost certainly get a red cap with white spots. That's Amanita muscaria, a mushroom nobody should eat raw, and it has somehow become the...
The popular picture is simple: in Siberia, the fly agaric was the shaman's sacred mushroom. That's only half the story. The ethnographic record describes shamans using it, but it a...
Search PubMed for "Amanita regalis" and you get exactly one record: a three-patient Finnish poisoning report from 1979. That's the entire indexed clinical literature on the royal f...
Nobody has ever run a pharmacokinetic study on the royal fly agaric. Every timeline you'll find for it, including this one, is assembled from one 1979 Finnish report on three poiso...
The best-documented thing mushrooms do to human lungs is harm them. "Mushroom worker's lung" is a recognised occupational disease, caused by breathing in spores and organic dust on...
The best-documented effect any mushroom has on human skin is a rash. Shiitake dermatitis, a streaky, itchy eruption that looks as if the skin has been whipped, has been described i...
Run the actual numbers on one measured degradation study and something uncomfortable falls out: vitamin D2 in UV-treated mushrooms decays with a first-order rate constant of 0.025...
No human study has ever tested reishi, cordyceps, lion's mane, chaga or Amanita alongside hormonal contraception. So anyone who tells you a mushroom definitely does or doesn't affe...
No human trial has tested reishi, lion's mane, cordyceps, chaga or any other medicinal mushroom for thyroid function. Not one. Yet mushrooms and the thyroid do meet in real, practi...
"Turkey tail for dogs with cancer" is one of the most-searched mushroom-and-pet phrases online, built on a small earlier pilot study that looked promising. A larger, properly contr...
Amanita muscaria comes in more formats than almost anything else on this site — grade A caps, grade B caps, premium caps, powder, capsules, and tincture — and every one...
Before any brewing instruction is worth reading, one check has to happen first: are these needles actually from a pine tree? A documented fatal case involved someone who ingested y...
The dominant reason people buy blue lotus is for sleep and vivid dreaming, and the honest starting point is that no human trial has ever tested it for either. What exists instead i...
"Take shilajit in the morning to match your natural testosterone peak" is the standard advice, and it rests on a fact about young healthy men that doesn't reliably hold for the pop...
Tremella has five upside articles on this site and, until now, no dedicated safety one — a gap worth closing given the species has exactly one oral human randomised trial to...
Chanterelle's immune-modulating mechanism — beta-glucans binding Dectin-1 and complement receptors on macrophages and neutrophils — is genuinely well characterised. It'...
Here's an uncomfortable starting point for a dosage guide: nobody has run a clinical trial establishing a safe or effective dose of Phallus impudicus in humans. The published evide...
Melatonin's own meta-analysis describes its effect as modest, and the number backs that up: 7 minutes shaved off the time it takes to fall asleep. Valerian's meta-analysis found a...
Two systematic reviews looked at chlorella and cardiovascular risk factors and reached opposite conclusions. One, pooling 19 trials and 797 subjects, found significant drops in cho...
Both get pitched at the same buyer — a man in his 40s or 50s wanting more drive and less fatigue — and both have a real trial behind that pitch. They just don't test th...
Ask what these two do and you'll get the same word twice: energy. Read the trials and neither one measured anything a tired person would recognise. Cordyceps raised the threshold a...
One of these is marketed as the brain product and the other as the stress herb. Line up the human trials on cognition in healthy adults and the labels swap places. A 2026 meta-anal...
These two get shelved together as "immune mushrooms" and their evidence could hardly be further apart. Trametes Versicolor's polysaccharide fraction has randomised survival data pu...
The usual answer is lion's mane for focus, reishi for calm, and that split is roughly right about intent and almost useless about evidence. Lion's mane has more human trials, but n...
A 2026 analysis applied a new extraction method to 63 edible mushroom samples across six species and found that every single sample contained at least one of four Alternaria toxins...
The standard warning says reishi lowers blood pressure and may therefore stack dangerously with antihypertensive medication. A Cochrane review of five randomised trials covering 39...
A 49-year-old man reached end-stage renal disease after years of daily chaga powder. When his nephrologists measured the oxalate content of what was left in his jar, it came back a...
Twenty-five published cases of ashwagandha-associated liver injury now exist across thirteen peer-reviewed papers. Most recovered fully within weeks to months of stopping. Three di...
Two studies of the same product category reached opposite conclusions, and the gap between them is the entire safety story. A Canadian survey of 18 commercial algae supplements fou...
