Definitely not 100% external. A chunk of cases are known to be genetic.

And these people were eating a mushroom known to be mildly poisonous.

Exactly. There’s a reason I won’t eat any Amanita: the similarity of edible and deadly species in that genus makes them the main source of mushroom fatalities in North America.

By contrast, messing up a bolete ID is likely to result in a meal that is too bitter to eat. That’s a much more acceptable risk.

And these days, that means making sure it’s a book written by someone who knows what they are doing, rather than AI auto-generated bullshit.

If you know what you’re doing, you get incredible deliciousness.

He’s already sent people to prison in El Salvador in violation of court order.

And to be clear, “death” isn’t much of an exaggeration: