Federal regulators have added three more products to a safety alert warning that botanical weight-loss supplements sold to American consumers have been found to contain yellow oleander, a poisonous plant whose compounds act directly on the heart.
The FDA updated the safety alert on August 12, 2026. The agency said it tested the products and found they contain toxic yellow oleander, which can cause neurologic, gastrointestinal, and cardiovascular adverse health effects that may be severe or even fatal.
The three newly listed products are Slim Elixir, D Magic Plus, and B. Magi, all sold by Suerte Y Salud LLC through the website lamilagrosalab.com. Two of them carry a second problem. The FDA says D Magic Plus also contains diclofenac, a prescription anti-inflammatory that can cause life-threatening reactions, and that B. Magi also contains phenolphthalein, a laxative that was pulled from the U.S. market and may increase cancer risk. Neither ingredient appears on the label. The agency says the selling firm has not responded to its calls or emails.
The problem is not that consumers are seeking out a poisonous plant. It is that they are not being told they are buying one. The products are labeled as tejocote root and are also sold under the names Crataegus mexicana, Raiz de Tejocote, Mexican Hawthorn, or Brazil seed. FDA analysis determined these products are adulterated because they contain yellow oleander instead of the labeled ingredient.
A Substitution That Turns a Supplement into a Cardiac Drug
Tejocote is a Mexican hawthorn fruit with a long history of traditional use, and it is not the concern here. Yellow oleander, which grows in the same regions and produces a superficially similar root, is an entirely different plant.
Yellow oleander contains cardiac glycosides, a class of compounds that act on the same cellular target as prescription heart medications such as digoxin. In controlled medical use, that mechanism treats heart failure and certain arrhythmias. In an unmeasured dose of a plant substance substituted into a capsule, the same mechanism can cause dangerous heart rhythm disturbances.
The practical consequence is that these products do not behave like a supplement that simply fails to work. They behave like an uncontrolled dose of a cardiac drug, taken by someone with no medical supervision and no idea they are taking it.
The alert is not new. It traces to a September 2023 report published in the CDC's weekly journal, which began after a poison center was called about a 23-month-old child who became ill after consuming a product marketed as tejocote root. Investigators bought and tested 10 products labeled as tejocote. None contained tejocote root, and nine tested positive for yellow oleander. The FDA opened its own sampling program on the strength of that finding, and the safety alert has grown steadily since, now naming roughly 25 products.
The Marketplaces Where These Products Circulate
These are not obscure products found only in specialty shops. The FDA's list documents them for sale through company websites and major third-party platforms, including Amazon, eBay, and Etsy.
That distribution profile is what makes the alert difficult to close out. The agency says it is actively working with the third-party platforms where the products are sold, but the pattern of repeated additions to the same alert over nearly three years suggests that removing one listing does not remove the category. The recall status column tells its own story: several firms declined to recall and merely removed listings, and the FDA has been unable to contact others at all.
Based on its sampling and testing so far, the FDA has said it is also concerned that other products marketed as tejocote root, under any of its various names, may contain yellow oleander even when they have not been individually tested. Further investigation has determined that some supplements not labeled as containing tejocote root may also contain the plant. That is a broader caution than a product-specific recall, and it changes what a consumer should do. Checking a single brand name against the alert list is insufficient if the underlying category is unreliable.
Symptoms That Point Toward the Heart
Because the toxin affects cardiac tissue, the warning signs differ from those people typically associate with a bad supplement reaction.
Cardiac glycoside toxicity commonly begins with nausea, vomiting, abdominal pain, and diarrhea, which is easy to mistake for ordinary stomach upset or for an expected effect of a weight-loss product. Neurologic effects can include confusion, weakness, dizziness, and visual disturbances. The cardiovascular effects are the dangerous ones and can include an unusually slow or irregular heartbeat, palpitations, fainting, and collapse.
The FDA's advice is direct. Consumers should stop using these products and dispose of them. Anyone who has taken one should contact their health care provider immediately, even if they have not used it recently, so that an appropriate evaluation can be conducted. For serious side effects, the agency says to call 911 or get emergency medical help right away. Consumers can also contact their state poison control center, reachable nationally at 1-800-222-1222, which is free, confidential, and available 24/7.
People taking prescription heart medications, particularly digoxin, and people with existing heart rhythm conditions face compounded risk because the plant's compounds act on the same target. Older adults and anyone with reduced kidney function are also more vulnerable to the accumulation of cardiac glycosides.
Regulatory Gaps That Keep the Alert Open
The reason this problem persists is structural rather than mysterious, and readers deserve the explanation.
Dietary supplements in the United States are not reviewed or approved by the FDA before they reach the market. Manufacturers are responsible for ensuring their products are safe and accurately labeled, and the agency generally acts after a product is already being sold. That framework leaves the FDA testing samples, publishing alerts and asking platforms to delist, rather than blocking entry.
For consumers, that means the safest approach to this specific category is avoidance rather than careful brand selection. MedicalDaily has covered similar enforcement limits in the unregulated peptide market, where warning letters have not stopped sales.
Several things remain unknown. The FDA has not published the total number of adverse events or deaths linked to these substituted products, nor has it identified the point in the supply chain at which substitution occurs. Whether the affected products originate from a shared source has not been disclosed. The agency says it continues to test botanical weight-loss products for yellow oleander, which indicates the alert is likely to grow again, as Food Safety News reported after the latest update. Anyone currently taking a tejocote or Brazil seed product should treat a call to their clinician as the immediate next step.
Key Questions Answered
What did the FDA announce? On August 12, 2026, the agency added three products to its safety alert on supplements found to contain toxic yellow oleander: Slim Elixir, D Magic Plus, and B. Magi.
What is yellow oleander? A poisonous plant native to Mexico and Central America. It contains cardiac glycosides, compounds that act on the heart in the same way as certain prescription heart drugs.
How is it ending up in supplements? Products labeled as tejocote root or Brazil seed have been tested and found to contain yellow oleander instead of the labeled ingredient.
What are the hidden drug ingredients? D Magic Plus was found to contain diclofenac, which can cause life-threatening reactions. B. Magi was found to contain phenolphthalein, which may increase cancer risk.
What symptoms should I watch for? Nausea, vomiting, abdominal pain, and diarrhea, along with confusion, weakness, dizziness, visual changes, slow or irregular heartbeat, palpitations, or fainting.
What should I do if I have taken one? Stop using it, dispose of it, and contact your health care provider immediately, even if you stopped some time ago. For serious symptoms, call 911.
Is every tejocote product affected? Not every product has been tested, but the FDA has said it is concerned that other products marketed under these names may also contain yellow oleander.
