Governments around the world consider mushrooms and LSD to be among the most dangerous illicit substances , but a new survey of drug users suggests that these psychedelics are actually some of the safest.

Around 20,000 people reported having used either mushrooms, which contain the psychoactive compound psilocybin, or LSD in the past year, according to the 2017 Global Drug Survey . Of those, just over 100 people reported seeking emergency medical treatment related to those drugs. Most of these cases were linked to LSD a total of 1 percent of recent LSD users and just 0.2 percent of recent mushroom users sought treatment.

By that metric, the survey concludes that mushrooms are the safest recreational drug. LSD ranked a close third behind marijuana, as 0.6 percent of people whod used cannabis over the past year reported receiving emergency medical care.

All three drugs were less dangerous than alcohol, which was by far the most widely used intoxicant in the survey and led to 1.3 percent of all recent users seeking emergency treatment. For methamphetamine, the most harmful substance included on the survey, 4.8 percent of people whod used in the last year ended up rushing to see a medical professional.