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Steven Gundry's lectin-avoidance diet

Criticism of Steven Gundry's lectin-avoidance diet by nutrition experts and fact-checkers, citing questionable science and potential nutritional downsides

Fact-Checks

2 results
Jan 22, 2026
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What advertising or health claims by gundry md prompted regulatory or consumer actions?

’s advertising—centered on anti‑, “gut health,” longevity and youth-restoring promises tied to specific supplements—has driven waves of consumer complaints about efficacy, billing and practices and at...

Jan 22, 2026
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What peer-reviewed critiques or rebuttals exist of Gundry’s 2017 claims about lectins and ‘leaky gut’?

Peer-reviewed rebuttals and expert reviews of 2017 overwhelmingly find his central thesis unsupported by rigorous evidence, pointing to a lack of controlled clinical trials, misrepresentation of the l...