By Mary Rooke

Copyright dailycaller

President Donald Trump, alongside Department of Health and Human Services (HHS) Sec. Robert F. Kennedy Jr. and other medical experts, held a press conference Monday at the White House. There they announced new federal initiatives aimed at addressing autism spectrum disorder (ASD), which (oddly) has sent the left into hysterics.

At Monday’s press conference, Trump warned against the use of acetaminophen (commonly known as Tylenol) during pregnancy due to its alleged link to autism.

“Effective immediately, the FDA will be notifying physicians that the use of acetaminophen during pregnancy can be associated with a very increased risk of autism,” Trump said. “So, taking Tylenol is not good, alright? I’ll say it. It’s not good. For this reason, they are strongly recommending that women limit Tylenol use during pregnancy unless medically necessary.”

President Trump said his administration was linking acetaminophen, the active ingredient in Tylenol, to autism and urging pregnant women to largely avoid the medication https://t.co/OLP6gPO8q0 pic.twitter.com/cKxakUq4jq — Bloomberg (@business) September 22, 2025

The White House released a fact sheet that included several studies used by the Trump administration in its decision to make this announcement, including ones from Mount Sinai and Johns Hopkins University. Additionally, studies published in the National Library of Medicine through the National Institute for Health and the special issue of Neurodevelopmental Disorders in Pediatrics were included. (Sign up for Mary Rooke’s weekly newsletter here!)

The Mount Sinai study published Aug. 14 in BMC Environmental Health said it found evidence that acetaminophen use by pregnant mothers may be linked to an increased risk of ASD and Attention-Deficit Hyperactivity Disorder (ADHD).

“Researchers at the Icahn School of Medicine at Mount Sinai have found that prenatal exposure to acetaminophen may increase the risk of neurodevelopmental disorders, including autism spectrum disorder and attention-deficit/hyperactivity disorder (ADHD), in children,” Mount Sinai said in a statement.

“While the study does not show that acetaminophen directly causes neurodevelopmental disorders, the research team’s findings strengthen the evidence for a connection and raise concerns about current clinical practices,” the press release stated.

“The researchers call for cautious, time-limited use of acetaminophen during pregnancy under medical supervision; updated clinical guidelines to better balance the benefits and risks; and further research to confirm these findings and identify safer alternatives for managing pain and fever in expectant mothers,” the statement added.

Andrea Baccarelli, dean of the faculty at Harvard T.H. Chan School of Public Health and professor of environmental health, was the senior author for the Mount Sinai study.

BREAKING: President Trump, with RFK Jr., just alerted doctors to a link between Tylenol use in pregnancy and autism. For decades, Pharma buried risks and hid correlations between autism, vaccines, and medicines. Our children deserve honest science—not suppression. pic.twitter.com/cCBFQh6oUZ — Dr. Simone Gold (@drsimonegold) September 23, 2025

Researchers from Johns Hopkins Bloomberg School of Public Health also found that prenatal exposure to acetaminophen may increase a child’s risk for ADHD or ASD.

Analyzed umbilical cord blood from 996 births in a Boston cohort found children with the highest acetaminophen exposure were about 3 times more likely to develop ASD or ADHD compared to the lowest exposure group. It was an observational study that relied on biomarkers for objective exposure measurement, which is stronger than self-reports in avoiding recall bias. However, it explicitly notes this is an association, not causation, and calls for more research.

The Johns Hopkins study was published in JAMA (Journal of the American Medical Association) Psychiatry in October 2019.

The Multidisciplinary Digital Publishing Institute (MDPI), a major international publisher of open-access academic journals, has published a study by researchers from the University of North Carolina at Chapel Hill, Duke University, and other institutions.

“Based on available data that include approximately 20 lines of evidence from studies in laboratory animal models, observations in humans, correlations in time, and pharmacological/toxicological considerations, it has been concluded without reasonable doubt and with no evidence to the contrary that exposure of susceptible babies and children to acetaminophen (paracetamol) induces many, if not most, cases of autism spectrum disorder (ASD),” the studies abstract stated, adding, “However, the relative number of cases of ASD that might be induced by acetaminophen has not yet been estimated.”

These aren’t crackpot versions of medical journals or hospitals. These institutions have a long history of hosting some of the best and brightest medical minds in the U.S., if not the world. And while there are studies like the JAMA-published Swedish study analyzing 2.5 million children, finding no causal link between prenatal acetaminophen (Tylenol) use and autism or ADHD when using sibling controls, the studies used by the Trump administration primarily demonstrate correlations (associations), not causation, and call for more rigorous research on the issue.

Similar to how Trump was treated during the COVID pandemic amid the hysteria in which the media mocked him, they are once again in hysterics over his administration’s announcement. At least 12 major media outlets published stories that mocked the Trump administration or otherwise demonized the announcement by portraying it as unproven, unfounded, not backed by science, dangerous, irresponsible, or distorting facts.

Among those outlets were ABC News, NBC News, MSNBC, NPR, The New York Times, The Wall Street Journal, and CNBC.

“I don’t have an answer to that,” says NIH Director Dr. Jay Bhattacharya when asked why autism has surged in the U.S. Bhattacharya tells @LelandVittert it’s partly due to our inability to have an honest conversation about the cause. MORE: https://t.co/kA65G1x4R7 pic.twitter.com/97hkQDryzN — NewsNation (@NewsNation) September 23, 2025

Trump’s warning to pregnant women to limit their use of acetaminophen falls in line with some top researchers in the medical field, like those at Mount Sinai, who have cautioned the same. Still, it wouldn’t really matter if the Trump administration came out to say water is wet; the left-wing media will find some way to try to call him a fool. (ROOKE: ‘I Don’t Think I’ve Ever Said Publicly’ — Liz Warren Fed Up With Obama And The Interview Is So Revealing)

The press conference will likely be the first of many, as Trump attempts to deliver on his promise to ensure his administration, through HHS, finds the cause and cure for childhood autism. It is a noble task that should be applauded as American parents navigate the often challenging road of dealing with this disorder.

The left seems more interested in claiming Trump’s announcement is unfounded than in keeping the health and safety of Americans at the forefront of their reporting.

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