According to ProPublica, Joseph Mercola, an alternative health advocate known for challenging mainstream medical guidance, has reversed his long-standing position on vitamin K injections for newborns. Mercola had previously cautioned parents against the shots, citing safety concerns. His shift comes as pediatricians continue to recommend the preventive treatment to reduce the risk of serious bleeding disorders in infants. The reversal underscores how health influencers can sway parental decision-making—and what happens when those positions change.

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