This study claimed that high cholesterol on keto was safe — but did they hide the truth? I’m Dr. Eric Westman, and in this video I break down the controversial “Lean Mass Hyper-Responder” study, the accusations of buried data, and what the real science shows. After decades of clinical work with low-carb patients, I’ve seen how misinformation spreads fast, so let’s look at what actually happened here.

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Video Summary (for/against context; based solely on the video)

Context

  • Format: A reaction/rebuttal in which Dr. Eric Westman plays and responds to a critical video by Mike the Vegan about a ketogenic diet coronary CT angiography (“Keto-CTA”) study.
  • Core dispute: Whether the Keto-CTA study’s data and rollout support the claim that very high LDL/ApoB in lean, metabolically healthy ketogenic dieters did not predict plaque progression.

“Against” (Mike the Vegan’s critique)

  • Data handling / transparency
    • Accuses the authors of “gross manipulation” and burying key outcomes.
    • Claims the public rollout was mishandled, including release of a figure that a senior author later said “was not the final paper.”
    • Says some data had to be “squeezed” out of the authors and that this situation is unusual.
  • Study framing
    • Objects to calling it a “trial” or “prospective trial,” asserting it’s actually a prospective cohort and that repeated “trial” language is misrepresentative.
  • Missing/underplayed outcomes
    • Asks whether key CTA outcomes (e.g., percent change in non-calcified/total plaque) were “shoved under the rug.”
    • Highlights mixed outcomes across participants (some progressed, some regressed) and argues the presentation overstates safety of high LDL/ApoB.
  • Authorial disagreement
    • Points to apparent discord among study authors and cites Dr. Budoff’s statements criticizing how a figure was released/handled.
  • Call for oversight
    • Urges JACC: Advances (the publishing journal) to review what went wrong and at minimum issue a correction.

“For” (Dr. Eric Westman’s rebuttal)

  • Primary finding defended
    • Emphasizes the study’s central observation: in lean, metabolically healthy ketogenic dieters, LDL-C/ApoB did not predict plaque progression, whereas baseline plaque burden was a strong predictor of future plaque change.
  • Imaging method context
    • Stresses the distinction between CTA (visualizes plaque directly, including non-calcified plaque) vs CAC (calcified plaque scoring), framing CTA as a more granular modality for this question.
  • Heterogeneous outcomes are expected
    • Notes it’s normal that some participants regress, some progress, and some remain stable over time; interprets this variability as consistent with real-world clinical experience.
  • Study nomenclature and intent
    • Treats the “Keto-CTA” label as a colloquial descriptor; focuses attention on what the imaging showed over time, not on the “trial” vs “cohort” wording dispute.
  • Clinical takeaway for this population
    • Reiterates the population studied (lean, metabolically healthy, long-term ketogenic dieters) and the specific result (plaque predicts plaque; LDL/ApoB didn’t in this cohort over the measured interval).

Neutral clarifications presented in the video

  • Population & duration: Lean, metabolically healthy adults on long-term ketogenic diets underwent research-grade coronary CTA; follow-up imaging assessed plaque change.
  • Baseline plaque matters: Existing plaque at baseline was repeatedly described as the best predictor of subsequent change.
  • Outcome mix: Across individuals, progression, stability, and regression were all observed.

Papers referenced in the video (DOIs)

  • KETO Trial (baseline cross-sectional CTA)Carbohydrate Restriction-Induced Elevations in LDL-Cholesterol and Atherosclerosis: The KETO Trial (JACC: Advances, 2024).
    DOI: 10.1016/j.jacadv.2024.101109
  • Keto-CTA longitudinal analysisLongitudinal Data From the KETO-CTA Study: Plaque Progression and Predictors in Lean Individuals on a Ketogenic Diet (JACC: Advances, 2025).
    DOI: 10.1016/j.jacadv.2025.101686
  • jetOPMA
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    5 天前

    Yeah and he doesn’t look very healthy lately .

    Honestly the must difficult thing about him is that he says anything to further his position without trying to be objective on what the data says or the context around his sound bites. He is very much a partisan

    • psud@aussie.zoneM
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      1 天前

      Funny how the carnivore promoters on YouTube all look so healthy, and all but one vegan promoter look terribly unwell. The one exception on the vegan side (CyclingAbout on YouTube) isn’t promoting the diet, he’s a long distance full time cyclist, who has mentioned a few times he is vegan

      • jetOPMA
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        24 小时前

        Yeah, it’s a bit telling!

        Though I don’t understand why the vegans see themselves in a life or death struggle with zero carb. Do what works for you, show everybody how awesome it is… That’s the best any of us can do, and it’s the best advertising