Category Archives: Thermic Effect of Food (TEF)

Weight Loss Lowers Resting Metabolic Rate

It is a widely held belief amongst medical professionals and dietitians that weight gain is caused by small incremental accumulations of fat tissue due to a positive energy balance. This belief results in an associated belief that weight loss is … Continue reading

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More On Weight Loss And Thermogenesis

Forced calorie restriction and subsequent weight loss is associated with a reduction in body weight. However, this body weight includes substantial amounts of skeletal muscle. This is problematic because it ts the skeletal muscle mass that dictates the resting metabolic … Continue reading

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The Weight Loss Effects of Alcohol

We are told by the ‘experts’ who control our lives that when we get fat it is because we eat too much and do too little. This ‘eat-too-much, do-too-little’ theory of weight gain is ‘common knowledge’ to most and so … Continue reading

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Thermogenic response to Fat: Obesity

The ‘eat-too-much, do-too-little’ theory of obesity claims that weight gain is a simple case of a positive energy balance. Too much food and too little exercise is said to cause a small but constant accumulation of stored energy that over … Continue reading

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Postexercise Energy Expenditure from Aerobic Exercise

  The energy balance equation suggests that body weight is determined by the amount of calories consumed and the amount of exercise performed. However, this equation does not represent the true picture because it does not account for the ability … Continue reading

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Energy Balance: A Complex Subject

  The energy balance equation is often used to justify that weight gain and obesity is caused by too much food and too little exercise. This ‘eat-too-much, do-too-little’ hypothesis of weight gain blames the individual for their excessive body fat. … Continue reading

Posted in Adaptive Thermogenesis, Basal Metabolic Rate, Energy Expenditure, Resting Metabolic Rate (RMR), Thermic Effect of Activity (TEA), Thermic Effect of Food (TEF) | Comments Off on Energy Balance: A Complex Subject

Energy Restriction Diets Fail

  Energy restriction diets do not cause successful long term weight loss. Despite this energy restriction diets are still considered the only way to cause weight loss by many people, including those in the medical establishment. While weight loss is … Continue reading

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Thermic Effect Of Food and Energy Expenditure

  The thermic effect of food (TEF) is the postprandial rise in energy expenditure that is due to the processing of ingested food. It was first shown by Seguin and Lavoisier in 1793 when they measured an increase in oxygen … Continue reading

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Energy Expenditure In More Detail

  Daily energy expenditure is composed of three main components, the resting metabolic rate (RMR), the thermic effect of food (TEF) and the thermic effect of activity (TEA). The resting metabolic rate is the energy required by the body to … Continue reading

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Protein Versus Carbohydrate Versus Fat: Energy Considerations

Altering the ratio of the macronutrients can have a strong influence on the prevailing metabolic energy balance because protein, carbohydrate and fat are metabolised quite differently. Postprandially, protein can increase thermogenesis by 25 to 40 %, glucose by 6 to … Continue reading

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