Dr. Joseph Mercola Reverses Long-Held Opposition to Vitamin K Shots for Newborns
Dr. Joseph Mercola, a prominent alternative medicine figure who spent over a decade warning parents against newborn vitamin K shots, has publicly reversed his position, now stating 'the data is clear: vitamin K saves lives.' His reversal came days after ProPublica contacted him while preparing a report on infant deaths linked to parents refusing the shot. The shift is significant because Mercola's earlier writings were widely cited by vaccine-skeptical parents, and refusal rates for the shot have risen 77% between 2017 and 2024.
Dr. Joseph Mercola, an osteopathic physician with 1.7 million Facebook followers and a prominent voice in anti-vaccine circles, has reversed his longstanding opposition to the newborn vitamin K shot, now endorsing it as the 'prudent choice' and urging parents to consult their pediatricians. Mercola published his updated position on his website in April, two days after ProPublica contacted him about infant deaths resulting from parents declining the shot. His earlier claims — that the shot was unnecessary, contained toxic preservatives, and delivered an excessive dose — have been widely debunked by medical authorities, and the science supporting the shot has been settled for decades, with the discovery of vitamin K's role in blood clotting earning a Nobel Prize in 1943. Mercola acknowledged in his new article that his 2010 post may have contributed to online misinformation, though he framed his reversal as following a scientific evolution rather than correcting longstanding errors. A study analyzing over 5 million health records found that nearly 200,000 newborns did not receive the shot between 2017 and 2024, a 77% increase in refusals, with doctors now reporting a rise in severe brain and gut bleeds in infants. HHS Secretary Robert F. Kennedy Jr., a longtime Mercola ally, has declined to publicly endorse the shot despite official CDC recommendations, and an HHS spokesperson attributed declining uptake partly to distrust stemming from COVID-19 pandemic policies under the Biden administration. Other figures in anti-vaccine circles, including Dr. Suzanne Humphries and Children's Health Defense's Brian Hooker, continue to raise doubts about the shot's safety.
How coverage differed
ProPublica framed Mercola's reversal critically, emphasizing that the underlying science was never actually in dispute and that his 2010 article spread misinformation that contributed to infant deaths. The New York Post presented the reversal more straightforwardly as a notable about-face, giving somewhat more neutral framing to Mercola's stated reasoning and spending less time challenging the premise that the science had 'moved' since 2010.
What different sources said
- New York PostRight
Popular anti-vax doctor does 180 on a newborn injection for ‘devastating’ fatal condition
- ProPublicaLeft
A Popular Doctor Had Long Warned That Vitamin K Shots Are Risky for Newborns. Now He’s Changed His Tune.
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