FDA Infant Formula Testing Signals Ongoing Contaminant Oversight

Infant formula manufacturers are facing a renewed regulatory signal from the US Food and Drug Administration after the agency published results from what it described as the largest US testing effort to date focused on chemical contaminants in formula sold at retail. For finished product manufacturers and ingredient stakeholders, the announcement acts as an indicator of continuing scrutiny around contaminant control, action levels, and supply chain oversight.

“We tested more infant formula than ever before, and the results are clear: most products meet a high safety standard—but even small exposures matter for newborns,” said Health and Human Services Secretary Robert F. Kennedy, Jr. The agency said it analyzed more than 300 samples and generated more than 120,000 data points across powdered, ready-to-feed, and concentrated liquid products.¹ Specifically, the agency tested 312 samples across 16 brands.²

What Did the FDA’s Infant Formula Contaminant Testing Find?

The findings, released April 29, suggest that most products tested had undetectable or very low levels of lead, mercury, cadmium, arsenic, pesticides including glyphosate and glufosinate, per- and polyfluoroalkyl substances, and phthalates. At the same time, the agency said it will continue follow-up testing and engage manufacturers on reducing contaminant levels to be as low as possible, while also working toward action levels for contaminants in infant formula.

The agency framed the survey as a broad market review rather than a product-specific enforcement action. According to the release, the data support the conclusion that the US infant formula supply is safe, while also reinforcing the agency’s position that low-level contaminant exposure in newborns remains a public health concern.

“You can judge a society by how it treats its most vulnerable members,” said FDA Commissioner Marty Makary, M.D., M.P.H. “That’s why we’re doing everything in our power to make sure our babies and infants have safe, high quality formula options that are backed by a resilient supply chain. The results of this study are encouraging. We will continue to advance formula innovation and safety for the millions of families who depend on it.”

The results do not identify product categories or brands. Instead, it places the results within a broader surveillance framework that includes chemical safety, nutrition, and microbiological oversight. A roundtable discussing infant formula oversight and the continuation of Operation Stork Speed is anticipated to occur in May, hosted by Secretary Kennedy.

“As a father, I understand how important it is for parents to trust the safety of the food they give their children,” said Kyle Diamantas, J.D., Deputy Commissioner for Deputy Commissioner for Food. “At the FDA, ensuring the health of America's next generation is vital. Through Operation Stork Speed and our Closer to Zero initiative, this testing—the first of its kind—reinforces that infant formula in the U.S. is a safe option for parents and caregivers who rely on it. We will continue working to drive contaminants to as low as possible through rigorous oversight.”

How Does This Fit Into the FDA’s Broader Infant Formula Oversight Strategy?

The agency linked the testing to Operation Stork Speed, the Closer to Zero initiative, and routine food surveillance. Closer to Zero has already established a policy direction centered on reducing childhood exposure to contaminants from foods, particularly for infants and young children.³ Operation Stork Speed was announced in March 2025 with the goal of expanding options for safe and nutritious infant formula in the US.⁴

The FDA made clear that this is not the end of the review. The agency said that under Operation Stork Speed it will test products that entered the market after the initial survey began, conduct additional compliance sampling, and release follow-up findings.

References

1. US Food and Drug Administration. Press Release: FDA Releases Results from Largest-Ever Testing of Infant Formula in the U.S. April 29, 2026. Accessed May 7, 2026. https://www.fda.gov/news-events/press-announcements/fda-releases-results-largest-ever-testing-infant-formula-us
2. US Food and Drug Administration. FDA’s Infant Formula Product Testing Results. April 29, 2026. Accessed May 7, 2026. https://www.fda.gov/food/infant-formula-homepage/fdas-infant-formula-product-testing-results
3. US Food and Drug Administration. Closer to Zero: Reducing Childhood Exposure to Contaminants from Foods. Accessed May 7, 2026. https://www.fda.gov/food/environmental-contaminants-food/closer-zero-reducing-childhood-exposure-contaminants-foods
4. US Food and Drug Administration. Closer to Zero: Reducing Childhood Exposure to Contaminants from Foods. Accessed May 7, 2026. https://www.fda.gov/food/infant-formula-homepage/operation-stork-speed