Most Replayed Moment: Calories In, Calories Out Is A Myth! Why Most Diets Fail - Dr. Jason Fung
Most Replayed Moment: Calories In, Calories Out Is A Myth! Why Most Diets Fail - Dr. Jason Fung
Most Replayed Moment: Calories In, Calories Out Is A Myth! Why Most Diets Fail - Dr. Jason Fung
In this insightful discussion, Dr. Jason Fung dismantles long-held myths about weight loss and exposes the limitations of conventional dietary advice. Rather than focusing solely on willpower or calorie counting, he shifts the conversation toward biology, hormones, and the timing of eating—revealing why so many diets fail and what actually drives lasting metabolic change.
Dr. Jason Fung challenges the oversimplified 'calories in, calories out' model, explaining how metabolic adaptation and insulin dynamics make sustained weight loss difficult. He emphasizes that hormonal regulation—not just energy balance—controls fat storage and burning. Frequent eating, especially high-carb diets, keeps insulin elevated, blocking fat utilization and promoting obesity. Intermittent fasting, by contrast, lowers insulin and allows the body to access stored fat efficiently. Contrary to fears of 'starvation mode,' fasting can boost metabolic rate and improve metabolic health. Exercise, while beneficial, plays a minor role in weight loss compared to dietary changes. The key to lasting results lies in reducing eating frequency, eliminating snacking, and embracing fasting as a natural, effective tool for metabolic reset.
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Eating fewer calories can slow metabolism and prevent fat loss
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The body burns stored fat during fasting when insulin levels drop, enabling energy use beyond dietary calories.
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Eating raises insulin and stores calories; fasting lowers insulin and burns calories.
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After four days of fasting, basal metabolic rate increases rather than decreases.
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Fasting increases metabolic rate by lowering insulin and raising cortisol and growth hormone
