Parents and guardians can rest assured as the Food and Drug Administration (FDA) affirms that baby formula in the United States is safer than ever before. This affirmation comes after the FDA conducted the largest and most comprehensive formula testing ever done in the country. This much-needed confirmation releases growing tension and worry among millions of families in the US who rely on baby formula to feed their infants.
In an attempt to increase access to safe, nutritious, and reliable formula for families, the FDA launched Operation Stork Speed in March 2025. As part of this initiative, some of the biggest brands of baby formula were tested for potential contaminants. This includes heavy metals and potentially harmful chemicals that can adversely affect the wellbeing and development of infants.
The results of the tests, released on April 29, were overwhelmingly reassuring. The 'FDA stated, "Across the products tested, an overwhelming majority of samples had undetectable or very low levels of contaminants, affirming that the U.S. infant formula supply is safe. This statements relieved many families who regularly depend on baby formula to nourish their young ones.

The testing conducted by the FDA was extensive and included various samples and substances. The comprehensive tests were performed on 312 formula samples from 16 distinctive brands. These included powdered, concentrated liquid, and ready-to-feed formulas with cow's milk, soy, and amino acid bases. To maintain objectivity, the FDA did not disclose the specific formula brands or products that were tested.
The tests were thorough and searched for several possible contaminants. These include arsenic, cadmium, lead, mercury, 318 types of pesticides, 30 different PFAS (per- and polyfluoroalkyl substances), also known as "forever chemicals", and 21 phthalates along with one non-phthalate plasticizer. Additionally, the FDA also tested some breast milk samples for arsenic, cadmium, mercury, and lead.
It's common for these substances to be found in food in small levels. They either occur naturally or are introduced by humans into the environment where the ingredients for baby formulas are grown. Despite this, their lingering presence in foodstuffs, especially those intended for infants, can still be worrying for parents.
Pleasingly, the majority of the formula samples tested showed undetectable or very low levels of these contaminants. Although some of these substances were found in the samples, the detected quantities were so miniscule that they weren't deemed harmful. Modern testing methods can spot even the smallest amounts of contaminants that are otherwise not harmful.
Results included traces of arsenic in 94% of the samples, with an average level of 0.5 parts per billion (ppb). For perspective, a single ppb is equivalent to one drop of water in an Olympic-size swimming pool. A further 76% of samples contained tiny amounts of cadmium, with an average of 0.2 ppb. Lead was found in 80% of the samples, again, with an average of 0.2 ppb.
Mercury, on the other hand, was detected in only 5% of the samples. The presence of mercury was so miniscule that the FDA didn't calculate an average ppb. Pesticides were found in mere 1% of the samples, and the amount was so minimal that an average ppb wasn't assessed.
Of all the 30 PFAS tested, only five were detected in the samples tested. 95% of the samples that did have one of the five PFAS had levels lower than 0.0029 ppb. Meanwhile, phthalates were found in 46% of the samples. The presence of phthalates was also minor enough that the FDA didn't calculate an average ppb.
Since the levels of these potentially harmful substances were discovered to be extremely low, they are not considered harmful to babies. Importantly, the detection of small amounts of these substances does not make the product unsafe. The FDA is now working on establishing action levels, which are limits for how much of a contaminant is allowed in a product before it causes concern.
Even though the levels of contaminants in the tested infant formula samples were generally low, the FDA will be conducting additional testing as part of its ongoing monitoring and oversight efforts. The agency plans to take action where necessary to ensure that infant formulas remain safe for the millions of families that rely on them daily.
The FDA's latest efforts are set to provide further reassurance to parents, caregivers, and families. Their diligence and thorough testing help to maintain the integrity of baby formula products and continue to keep families' trust in these essential products. The safety of infants is paramount, and with these rigorous testing protocols in place, baby formula is safer than ever before.
The safety of baby formula undoubtedly has a significant impact on the consumer trust in infant nutrition. FDA’s highly comprehensive tests are therefore a necessary reassurance to parents and guardians. Anyone relying extensively on baby formula can rest easy knowing that the FDA is committed to maintaining a safe, nutritious, and reliable formula supply.
While it's expected to find small amounts of natural or human-introduced substances in food, the levels should still be safe. The FDA's testing provides peace of mind knowing that even if such substances are present in baby formulas, they are in non-harmful quantities. The tests are a protective measure, and their results should not cause alarm.
In the light of these results, parents and caregivers can be confident in the quality of baby formula they provide to their infants. The FDA will continue to work diligently to maintain and improve this level of safety, and their efforts are something we as consumers can rely on. They are testament to the high standards of the FDA and their commitment to safeguarding the health of our nation's infants.
In a world of increasing product safety concerns, this update from the FDA comes as a sigh of relief for all those who rely on baby formula. We can all take comfort in the knowledge that the formulas we feed our infants meet stringent safety standards. In essence, the FDA's exhaustive testing and strict monitoring ensure that baby formula in the United States is as safe as it can possibly be.