Source credit: U.S. Food and Drug Administration – FDA Issues Warning About Certain Supplements Substituted with Toxic Yellow Oleander.
Summary: The FDA updated its safety alert on March 11, 2026 to add another product to a growing list of items labeled as tejocote root or Brazil seed that were found to contain toxic yellow oleander instead. The agency said the products can cause neurologic, gastrointestinal, and cardiovascular adverse effects that may be severe or even fatal, and it advised consumers to stop using them and contact a health care provider if they have taken them.
Why it matters for lifters
- Fast-fat-loss supplement culture still creates avoidable risk: Products sold for physique shortcuts can hide far more downside than the label suggests.
- Natural branding is not a safety guarantee: This is another reminder that adulteration and ingredient substitution remain real supplement-industry problems.
- Serious symptoms should not be brushed off: Palpitations, severe GI symptoms, dizziness, or other unusual reactions after a supplement deserve immediate attention.
What to watch next
- Watch for more products being added to the FDA list as surveillance continues.
- Physique athletes and aggressive dieters should be especially cautious with products promising fast appetite or weight effects.
- If you use supplements, prioritize transparent brands and avoid treating marketplace reviews or influencer claims as quality control.
Health disclaimer: This article is for informational purposes only and is not medical advice. If you have symptoms after using a supplement or have cardiovascular, neurologic, or gastrointestinal concerns, seek qualified medical help promptly.