
California health officials have moved to ban kratom sales after linking the unregulated supplement to six deaths in Los Angeles County this year, but the exact danger the substance poses remains unclear due to limited research and testing challenges.
Kratom is a tropical tree native to Southeast Asia whose leaves contain trace amounts of 7-OH, a natural psychoactive compound. The growing concern centers on concentrated synthetic versions sold as tablets, gummies, and liquid extracts that are marketed as dietary supplements for pain relief, anxiety, mood disorders, and opioid withdrawal.
Neither kratom nor 7-OH are regulated or approved for use in the United States as drug products, dietary supplements, or food additives, according to the FDA. In July, the agency issued warning letters to companies illegally marketing products containing 7-OH, but enforcement remains limited.
The six deaths in Los Angeles County involved individuals between ages 18 and 40 who had ingested products containing 7-OH. However, medical examiner reports showed that alcohol, medications, or illicit substances were also present in all cases. Five deaths were attributed to mixed drug effects, while the sixth was caused by cocaine overdose, making kratom's specific contribution difficult to determine.
Dr. Muntu Davis, Los Angeles County Health Officer, warned that 7-OH acts as a stimulant at lower doses and like an opioid at higher doses, with mixing it with other substances potentially causing fatal respiratory depression. The county has urged retailers to immediately remove all kratom and 7-OH products from shelves.
Toxicologists have identified significant obstacles to understanding kratom's risks. No test currently exists to measure 7-OH concentrations in the body—only whether it's present. Additionally, when the body metabolizes kratom, part of the breakdown naturally produces 7-OH, complicating interpretation of test results.
The compound's instability further complicates matters. While 7-OH may be present at time of death, it can break down before samples are collected and analyzed, potentially skewing results.
Robert Powers, a forensic toxicologist at the University of New Haven, acknowledged the challenge, noting that while kratom could have played a contributory role in the deaths, the mixed-substance nature of these cases makes definitive conclusions difficult.
At least six states have already banned 7-OH, including Alabama, Arkansas, Indiana, Rhode Island, Vermont, and Wisconsin. However, many consumers and retailers argue for regulation rather than prohibition, pointing to individuals who rely on kratom for chronic health conditions and use it responsibly.
The case highlights the broader challenge facing regulators in managing emerging supplements that operate in legal gray areas without adequate safety research or quality control standards.
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