Do not pick, buy, or eat wild mushrooms; any “folk tricks” for identification are useless

5. Do not pick, buy, or eat wild mushrooms; any “folk tricks” for identification are useless

Cost: No expense involved. The hard part is giving up a seasonal delicacy.

In plain terms: In 2025 alone, there were 828 cases of mushroom poisoning across China, affecting 2,165 people, with 13 fatalities. That same year, 34 previously unknown poisonous mushroom species were identified. Myths such as using a silver needle to test for toxicity, assuming mushrooms safe if insects eat them, or that only brightly colored varieties are toxic are all false.

Benefit: The Chinese CDC investigated 828 mushroom poisoning cases in 2025 involving 2,165 individuals; the mortality rate was 0.6%. From 2019 to 2024, annual cases ranged from 276 to 676, with mortality rates between 0.87% and 2.86%. In 2025 alone, 138 poisonous mushroom species were identified, including 34 new ones never documented before as causing poisoning.

Evidence grade: A

Sources: Mushroom Poisoning Outbreaks — China, 2025. China CDC Weekly (2026): "In 2025, China CDC investigated 828 mushroom poisoning incidents across 27 provincial-level administrative divisions (PLADs), affecting 2,165 individuals and causing 13 deaths - a case fatality rate of 0.6%, the lowest of the past six years. In total, 138 poisonous mushroom species were identified, including 34 newly recorded in poisoning incidents in China.""From 2019 to 2024, the annual number of incidents ranged from 276 to 676, and the case fatality rate ranged from 0.87% to 2.86%."<https://doi.org/10.46234/ccdcw2026.120>; 2024 <https://doi.org/10.46234/ccdcw2025.106>

Notes: If you accidentally eat poisonous mushrooms, induce vomiting immediately and then go to the hospital with any remaining mushrooms or photos of them. There are several types of mushroom poisoning, and identifying the exact species is crucial for proper treatment. New poisonous species are discovered each year, so the assumption that “local people can recognize them” is unfounded. Claims such as silver needle testing, cooking with garlic, insect consumption indicating safety, or vivid colors signaling toxicity are all incorrect.