Study Shows that Most Marijuana Contains Traces of Fecal Matter

If you need another reason to advocate for the legalization of marijuana—a new study from Spain shows why weed sold illegally on the street is more likely to have dangerous levels of feces in it.


Scientists at the Universidad Complutense in Madrid gathered 90 samples of cannabis from street dealers in and around Madrid, then tested the products to determine if they were “suitable for human consumption.”

The results, published in the latest issue of Forensic Science International, found that 83 percent of the tested samples were not suitable. Because they had too much shit in them.

The Streets are Full of Crap

Researchers believe that it is the result of the asinine tactics that cartel mules are forced to take when smuggling marijuana into other countries. One of the most popular methods is swallowing baggies containing the product and transporting it in the stomach. Once arrived at their destination, the mules then consume high doses of laxatives to move the pot from their large intestine to the outside world.

No cleansing process takes place to ensure the commode dope is free of disease. It is immediately sold in the underground, putting unsuspecting customers at risk of getting sick. The user is especially vulnerable to ganja guano if they have a weakened immune system.

Although it might seem like the butt bugs would be killed the moment the marijuana was put to a flame prior to smoking, experts argue that is not necessarily the case. “There are no filters on joints,” lead researcher José Manuel Moreno Pérez told El País. “You are not just breathing in smoke, but also particles.

Effects of Contamination

The study mentions that cancer patients are increasingly medicating with cannabis and that these patients may have weakened immune systems that can make them more vulnerable to contaminated drugs. And it can be inhaled as well, the study’s scientists found, if fecal matter ends up on your hands, mouth or joint before you light up.

Moroccan dealers wrap the weed in plastic “acorns” or small blocks and ingest it — only to take a laxative and expel the packages when they arrive in Spain.

While only 29.4 percent of weed in blocks had poop on them, a whopping 93 percent of acorn-shaped weed baggies were covered in crap.

It is important to point out that this study only focuses on the dealings happening around Madrid. It is in no way intended to imply that there is stoner sewage floating around in the United States.

In legal states, marijuana is tested for a variety of contaminants and considering that nobody has to put pot products up their ass to transport it, consumers in those places are relatively safe.

However, if you are still getting marijuana from the Mexican connection. there is always the possibility that when your dealer says, “hey man, this weed is the shit,” he won’t be lying.