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A Popular Diet Pill Contains a Poisonous Plant, Researchers Found

  • Nine of 10 products tested were a poisonous plant, study says
  • Instead of Tejocote Root, pills contained yellow oleander

The diet industry has long peddled unproven pills, supplements and foods to Americans looking for a quick way to shed pounds. 

Photographer: Oleksandra Troian/Getty Images
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A poisonous and sometimes deadly yellow plant is increasingly being found in diet pills and health foods, a concerning trend as Americans seek out unregulated alternatives to popular weight loss medications like Ozempic and Wegovy.

Testing at a lab in Oregon revealed that nine out of 10 products labeled as Tejocote Root were actually a plant called yellow oleander that is toxic to humans, according to findings published Thursday in the Centers for Disease Control and Prevention’s Morbidity and Mortality Weekly Report. Tejocote Root is a weight loss supplement widely regarded as bogus by experts that is nonetheless commonly found on pharmacy shelves and sold by popular online retailers.