Fact Check: Were Menopausal Hormone Therapy Black Box Warnings Based on Unscientific Data?

Media Bias Fact Check (MBFC) publishes daily vetted fact checks from verified IFCN-approved sources. Each claim is independently reviewed for accuracy and context.

Claimant: Robert F. Kennedy Jr.

Claim: Black box warnings on menopausal hormone therapy were based on unscientific interpretations.

Rating: MOSTLY FALSE

Explanation: The black box warnings were based on evidence from large randomized controlled trials conducted as part of the Women’s Health Initiative, which identified increased risks for certain outcomes. While public messaging sometimes oversimplified the findings, the underlying data were scientifically valid.

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Date: 12/29/2025

 

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Last Updated on December 29, 2025 by Media Bias Fact Check

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