The Food and Drug Administration has found psychoactive substances in Diamond Shruumz products after consumers became ill. As of August 30, 2024, 158 illnesses have been reported from 32 states; 63 have been hospitalized, and there are two potentially associated deaths. In addition to vomiting and nausea, reports of severe symptoms include seizures, loss of consciousness, confusion, sleepiness, agitation, abnormal heart rates, and high or low blood pressure. 


Diamond Shruumz is a manufacturer of chocolate and gummy edibles infused with mushrooms; the brand advertises many of its products as beneficial to mental health and wellbeing. As with any product making vague health or wellness claims, consumers should be wary, because these claims are often illegal and made without FDA review or approval.  

Diamond Shruumz products under investigation 

Following reports of serious adverse reactions, the FDA has initiated an illness outbreak investigation. All Diamond Shruumz products have been recalled and should not be sold or purchased. 

As part of their investigation, the FDA, along with partners in multiple states, collected and tested multiple Diamond Shruumz-brand products. In June 2024, these test results identified the psychoactive substances—4-acetoxy-N,N-dimethyltryptamine (or 4-acetoxy-DMT, also known as O-acetylpsilocin or psilacetin)—in two products (Diamond Shruumz Dark Chocolate Bar and Diamond Shruumz Birthday Cake Chocolate Bar). Additionally, the sampled Dark Chocolate Bar also contains desmethoxyyangonin, dihydrokavain, and kavain.  

In September, the FDA reported that ibotenic acid and muscimol were detected in a raw ingredient that was reportedly used in the manufacturing of some Diamond Shruumz-brand products. Pregabalin, a prescription drug, was found in three Chocolate Bar samples and five Infused Cone samples. 

Psilacetin is closely related to the illegal drug psilocybin and can induce hallucinations, visual illusions, and other sensory changes like psilocybin according to the US Centers for Disease Control and Prevention. 

Desmethoxyyangonin, dihydrokavain, and kavain are commonly found in kava, a plant sometimes sold as a dietary supplement, and can also have psychoactive effects, causing dizziness, loss of coordination, and sedation. The FDA and Centers for Disease Control and Prevention have raised safety concerns with kava because it has been linked to liver toxicity in human and animal studies and carcinogenicity in animal studies conducted by the US National Toxicology Program. FDA has declared that kava is not “generally recognized as safe,” or GRAS, effectively making it illegal to use in food. 

Ongoing testing, recall underway 

Additional testing for Diamond Shruumz-brand products is in progress; some results are available as of Sep. 5, 2024.  

The FDA is advising consumers to avoid these and all other Diamond Shruumz products, which are now recalled and should not be sold, purchased, or consumed.  

Learn more: How food companies sneak new ingredients past the FDA 


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If you have consumed Diamond Shruumz products 

For those who have purchased or consumed Diamond Shruumz products, the FDA makes the following recommendations: 

  • Consumers should not eat, sell, or serve any flavor of Diamond Shruumz-brand Chocolate Bars, Cones, or Gummies, and should discard them. 
  • Consumers should check their homes and discard these products if found. 
  • These products may appeal to children and teenagers. Parents and caregivers should consider discussing the information in this advisory with their children and take extra care to avoid these products being consumed by younger people. 
  • If you become ill after consuming these products, please contact your healthcare provider and/or call the Poison Help Line at 1-800-222-1222. Let them know you have recently consumed the Diamond Shruumz-brand Chocolate Bars, Cones, and/or Gummies. 

Healthcare providers should report these illnesses to their local health department and/or the  Poison Help Line

How CSPI is working to help 

Industry should not be allowed to decide in secret what is safe for us to eat. That’s why CSPI is leading efforts to support the GRAS transparency bill in New York state while also working to reform federal laws and regulations to ensure all American consumers are protected from unsafe food chemicals.  

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As a nonprofit organization that takes no donations from industry or government, CSPI relies on the support of donors to continue our work in securing a safe, nutritious, and transparent food system. Every donation—no matter how small—helps CSPI continue improving food access, removing harmful additives, strengthening food safety, conducting and reviewing research, and reforming food labeling. 

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