FDA and CDC Reopen Salmonella Outbreak Investigation Tied to Recalled Moringa Supplements

The U.S. Food and Drug Administration (FDA) and Centers for Disease Control and Prevention (CDC) have reopened a multistate outbreak investigation into Salmonella Typhimurium and Salmonella Newport infections linked to imported moringa leaf powder dietary supplements. As of May 27, 2026, the agencies have documented 119 total cases across multiple states. The investigation was initially closed in March 2026 but was reopened following the discovery of 22 new illnesses in four states, triggering fresh concern about contamination risks in imported botanical supplements.

What happened

In January 2026, the FDA and CDC first identified a cluster of Salmonella infections linked to moringa leaf powder supplements. The investigation was closed on March 17, 2026, but reopened on May 27, 2026, following discovery of additional cases and new exposure data. Multiple dietary supplement manufacturers have issued recalls of products containing imported moringa leaf powder, including capsules and powder formulations sold under brands such as Tnvitamins Ultra Potent Complete Green Superfood Moringa, Doctor's Pride Complete Green Superfood Ultra Potent Moringa, Why Not Natural Pure Organic Moringa Green Superfood, and Live it Up Super Greens.

The recalled products were primarily sold online through company websites and major retailers including Amazon, eBay, and Walmart. Consumers who purchased these items have been advised to dispose of the products and avoid consumption. The agencies have recommended that consumers and retailers thoroughly clean and sanitize any surfaces or containers that may have contacted the recalled supplements to reduce the risk of cross-contamination.

What the source says

According to the FDA's official outbreak investigation page, the outbreak involves two Salmonella serotypes: Salmonella Typhimurium and Salmonella Newport. Salmonella infection typically develops within 12 to 72 hours of exposure and causes symptoms including diarrhea, fever, and abdominal cramps, which generally last four to seven days. The CDC notes that certain populations—children under five, elderly individuals, and people with compromised immune systems—are at heightened risk for severe infections. The specific processing or supply-chain stage at which contamination occurred remains under investigation, though imported moringa leaf powder has been identified as the contamination source across multiple affected brands.

Beyond the headline

Moringa leaf powder has become a popular ingredient in the dietary supplement and functional food industry, marketed as a nutrient-dense botanical rich in vitamins, minerals, and antioxidants. This trend has driven demand for imported moringa products, particularly from suppliers in South Asia and Africa. However, this outbreak underscores longstanding gaps in supply-chain oversight and quality control for imported botanical supplements. Unlike pharmaceutical drugs, dietary supplements in the United States do not require pre-market approval by the FDA. Manufacturers are responsible for ensuring safety and labeling accuracy, but compliance monitoring often occurs only after problems surface.

The reopening of the investigation signals that additional cases continued to emerge after the initial closure, suggesting either ongoing exposure from remaining contaminated stock in the supply chain or delayed recognition of symptoms in consumers. The involvement of multiple brands and major retailers—including Amazon and Walmart—indicates that contamination may have affected a substantial portion of the moringa powder supply during a particular manufacturing window.

What this means for consumers

If you purchased moringa leaf powder supplements between January and May 2026, check your home for any recalled products. Specific recalled lots include: Tnvitamins-brand capsules (lots 2507199, 2512-304, and 2793 with expiration dates September 2027 through February 2028); Doctor's Pride Complete Green Superfood (lot 2507199, expiration September 2027); Why Not Natural capsules (lot A25G051, expiration July 2028); and all Live it Up Super Greens products with lot numbers beginning with "A" and expiration dates between August 2026 and January 2028.

If you own any of these recalled products, dispose of them immediately and do not consume them. Do not rely on cooking or heating to eliminate Salmonella contamination; disposal is the safest option. If you have consumed a recalled moringa supplement and subsequently experienced symptoms of Salmonella infection—diarrhea, fever, or abdominal cramps within 12 to 72 hours following consumption—contact your healthcare provider promptly. Provide information about the supplement brand, lot number, and consumption date to aid diagnosis. Those at higher risk, including young children under five, older adults, and immunocompromised individuals, should seek medical evaluation if any concerning gastrointestinal symptoms develop within the exposure window. Clean any surfaces and utensils that contacted the recalled products thoroughly with hot soapy water. Because the source of contamination (whether in cultivation, harvesting, processing, or storage) has not been definitively identified, consider discussing the safety of moringa supplements from other suppliers with your healthcare provider before resuming use.

What to watch next

The FDA and CDC investigation remains ongoing as of the latest update. Key developments to monitor include identification of the specific contamination source within the moringa supply chain and whether additional recalls are issued; epidemiologic findings identifying other potentially affected products or suppliers; FDA enforcement actions against manufacturers or importers found to have violated safety standards; and final case counts and outcomes as the outbreak investigation concludes. The agencies typically provide updates on their recall and outbreak pages, so consumers and healthcare providers should periodically check the FDA website for new information. Additionally, watch for any industry-wide response from supplement manufacturers regarding enhanced testing, supplier audits, or import controls for moringa and similar botanical ingredients. The outcome of this investigation may also influence future FDA guidance on botanical supplement safety and import standards.