A Popular Doctor Had Long Warned That Vitamin K Shots Are Risky for Newborns. Now He’s Changed His Tune.

ProPublica · Duaa Eldeib · 2026-06-12 09:00 UTC

After ProPublica contacted Dr. Joseph Mercola for an article on babies dying after parents turned down vitamin K shots, he publicly reversed his long-held stance that the shots weren't needed. “The data is clear: vitamin K saves lives,” he wrote.

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