The Doctor's Kitchen Podcast #302 How to improve Your Metabolism for Better Health, Energy & Weight Loss with Dr Adam Collins
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Jun 18, 2025 Dr. Adam Collins, a metabolism and nutrition expert from the University of Surrey, busts myths surrounding metabolic rates and aging. He delves into how stress and cold exposure can affect metabolism, and defines metabolic flexibility. Dr. Collins discusses the roles of carbohydrates and fats in energy production and highlights the importance of intermittent fasting for weight management and metabolic health. The conversation emphasizes how lifestyle choices impact metabolism throughout different life stages, particularly during menopause.
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Metabolism and Organ Energy Use
- Metabolism is the sum of all biochemical reactions in the body that produce and use energy.
- Major organs like liver and brain contribute about half of your resting metabolic rate.
Minimal Variation in Basal Metabolic Rate
- Basal metabolic rate varies only subtly among individuals with similar age, height, and weight.
- Differences of 50-100 calories/day are common, not large enough to explain major metabolic differences.
Middle-Age Weight Changes Explained
- Weight gain in middle age is often due to lifestyle changes, not a sudden metabolic rate drop.
- Reduced physical activity and increased calorie intake explain middle age weight gain more than metabolism slowing.