A study at a European hospital found the majority of mushroom-poisoning cases involved people consuming edible mushrooms, not toxic ones, says a report in the journal Human & Experimental Toxicology. Unsafe collection methods and storage of mushrooms considered safe to eat caused most of the illnesses, the study found.

Wild-mushroom foraging is popular in many countries, but edible mushrooms can become contaminated with toxic microorganisms if they aren’t stored properly or consumed soon after picking, the study suggests.

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