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Carbohydrate-Insulin Model

An Alternative Theory of Obesity and Weight Gain

The Carbohydrate-Insulin Model challenges the traditional 'calories in, calories out' view of weight gain. It proposes that highly processed carbohydrates drive obesity not just through excess calories, but by triggering hormonal responses—particularly elevated insulin—that promote fat storage and block fat burning. This model suggests that what you eat (and how it affects your hormones) may be more important than simply how much you eat, which helps explain why some people struggle with weight despite eating less and exercising more.

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Effects of a low carbohydrate diet on energy expenditure during weight loss maintenance: randomized trial

C B Ebbeling, H A Feldman, G L Klein, J M Wong, L Bielak, S K Steltz, P K Luoto, R R Wolfe, W W Wong, D S Ludwig

BMJ (Clinical research ed.) 2018

Tired of regaining weight after dieting? Research shows that a low-carb diet significantly boosts your daily calorie burn—up to 478 calories for those with high insulin secretion—making long-term weight maintenance dramatically easier.