Medical Conditions – Page 3 – NatWonk – Dr Bier's Research Reviews

Fasting vs Nonfasting, Dose-adjusted Levothyroxine Ingestion in Hypothyroidism: A Randomized Clinical Trial

February 4, 2026

Comment: For the last 30 years of practice, I have consistently recommended moving thyroid medication—including Desiccated Thyroid Extract (DTE)—to breakfast rather than fasting, often to the shock of conventional endocrinologists. This was based on original trials showing that coingestion with food reduced absorption, a factor I knew we could safely manage by monitoring the dose. […]

Antimicrobial Natural Product Berberine Is Efficacious for the Treatment of Atrial Fibrillation

January 31, 2026

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| Cardiovascular Health, Nutritional Supplements

Comment: This comparison of 88 completed follow-ups shows that natural alkaloids can function as antiarrhythmics. While amiodarone converts rhythm significantly faster (211 vs. 356 minutes), it does so while maintaining a “brittle” rhythm that is more prone to attrition over time than the rhythm supported by berberine. The statistical parity between the two agents at […]

Coffee consumption and adverse cardiovascular events in patients with atrial fibrillation

January 31, 2026

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| Cardiovascular Health, Diet & Nutrition

Comment: We have reached a saturation point in the evidence regarding coffee and cardiovascular health. Despite persistent concerns that coffee triggers AF episodes, this analysis of 3,835 patients confirms that these subjective fears do not translate into hard clinical harm. The physiological divergence is stark: while patients worry about palpitations, the data reveals a 23% […]

Effective management of atherosclerosis progress and hyperlipidemia with nattokinase: A clinical study with 1,062 participants

January 29, 2026

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| Cardiovascular Health, Nutritional Supplements

Comment: This study shifted my thinking around nattokinase as it somewhat clarified contradictions in the literature around efficacy, specifically it showed the failure of the “standard” 2,000 FU recommendation to hit the physiological threshold necessary for vascular remodeling. This study of 1,062 participants suggests that biology requires far more significant saturation to move the needle […]

Association of eating duration less than 8 h with all-cause, cardiovascular, and cancer mortality

January 26, 2026

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| Cancer, Cardiovascular Health, Diet & Nutrition

Comment: We are currently witnessing a significant conflict between the “biohacking” narrative—which promotes ultra-short eating windows (<8 hours) for longevity and metabolic optimization—and the hard clinical endpoints presented in this large-scale observational study. While the biochemical mechanisms of Time-Restricted Eating (TRE) are plausible in animal models, the hierarchy of evidence demands that we prioritize […]

The association of skipping breakfast with cancer-related and all-cause mortality in a national cohort of United States adults

January 25, 2026

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| Cancer, Diet & Nutrition, Longevity & Mortality

Comment: The current narrative surrounding Time-Restricted Eating (TRE) often relies on short-term metabolic markers or mechanistic theories to justify skipping the morning meal, but this massive prospective cohort study forces us to confront the hierarchy of clinical evidence: hard mortality endpoints consistently trump biochemical plausibility. In a nationally representative sample of over 7,000 adults followed […]

Time Restricted Eating and Intermittent Fasting Synthesis

January 25, 2026

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| Cancer, Cardiovascular Health, Diet & Nutrition, Metabolic Health, Synthesis

The Wonk Debate – Audio Critique & Clinical Commentary: The “Metabolic Panacea” Delusion: When Fasting Signals Catabolism and Mortality Updated: 1-25-2026 The “Metabolic Panacea” Delusion: When Fasting Signals Catabolism and Mortality The current fervor surrounding Time-Restricted Eating (TRE) and Intermittent Fasting has created a profound Core Tension: a collision between the biochemical promise of “metabolic […]

Effects of Time-Restricted Eating on Weight Loss and Other Metabolic Parameters in Women and Men With Overweight and Obesity

January 25, 2026

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| Diet & Nutrition, Metabolic Health

Comment: This is a really important study, as it is a randomized controlled trial, vs some of the other retrospective ones. And it is showing some of the same negative outcomes, strengthening the findings of those weaker trial designs. We are beginning to see a consistent, sobering pattern in the literature regarding Time-Restricted Eating (TRE). […]

The association between skipping breakfast and cardiovascular disease: a meta analysis

January 24, 2026

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| Cardiovascular Health, Diet & Nutrition, Longevity & Mortality

Comment: It is always important the acknowledge the risks in observational studies, however when the results keep coming back the same, it is important to pay attention. The Core Tension in the current discourse on metabolic health is the friction between the popularized biochemical “panacea” of intermittent fasting and the sobering mortality signals emerging from […]

Meal Skipping and Shorter Meal Intervals Are Associated with Increased Risk of All-Cause and Cardiovascular Disease Mortality among US Adults

January 24, 2026

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| Cardiovascular Health, Diet & Nutrition, Longevity & Mortality

Comment: There is a conflict between the biochemical promise of Time-Restricted Eating (TRE) and the hard reality of epidemiological survival data. Protocols like “One Meal a Day” (OMAD) are promoted for their theoretical impact on autophagy and insulin sensitivity, yet frequently ignores the most important metric: Overall Survival. While short-term mechanistic studies suggest metabolic benefit, […]