September 16, 2025

Ep. 299 - Intermittent Fasting for Type 2 Diabetes: Short-Term Benefits Disappear After Stopping | Why IF Must Be Lifestyle Not Diet | Long-Term Fasting Sustainability Study Results | Join Our Next Fasting Challenge!

35 minutes

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This episode examines a critical 2025 systematic review and meta-analysis of 12 randomized controlled trials involving 966 type 2 diabetic participants, revealing a sobering truth about intermittent fasting: while it produces remarkable short-term benefits, these gains completely disappear after discontinuation. Dr. Scott and Tommy analyze how various fasting protocols (time-restricted eating, fast-mimicking diets, periodic fasting) significantly reduced A1C levels, fasting blood glucose, and body weight in under three months - but all parameters returned to pre-intervention levels within three months of stopping. This research powerfully illustrates why fasting must be approached as a permanent lifestyle change rather than a temporary diet solution. The hosts address the staggering diabetes epidemic: 38 million diagnosed Americans, 9 million undiagnosed, and 98 million with prediabetes - totaling 145 million Americans on the diabetes spectrum. Learn why the "rebound effect" occurs when fasting habits aren't sustained, and discover practical strategies for long-term adherence through personal anecdotes about adapting fasting to real-life situations like family dinners and social pressures. The episode introduces the concept of "momentary maintenance" - deliberate pauses in fat loss to build confidence in weight control rather than viewing plateaus as failures. This research validates that consistency trumps perfection, emphasizing that intermittent fasting works brilliantly when maintained but requires the same ongoing commitment as any other health practice to preserve its metabolic benefits.

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Article Links:⁠

https://www.sciencedirect.com/science/article/pii/S0271531725000600?via%3Dihub

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