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[Energy expenditure and obesity]

E Balasse1

  • 1Laboratoire de Médecine expérimentale ULB et Hôpital Saint-Pierre, Bruxelles.

Revue Medicale De Bruxelles
|July 1, 1994
PubMed
Summary

Obesity is not caused by deficient energy expenditure. Scientific evidence shows obese individuals have higher metabolic rates and energy expenditure, refuting the "metabolic obesity" theory.

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Area of Science:

  • Metabolic studies
  • Obesity research
  • Human physiology

Context:

  • Investigating the etiology of human obesity.
  • Evaluating the role of energy expenditure in weight gain.
  • Addressing patient misconceptions about metabolic obesity.

Purpose:

  • To analyze literature on energy expenditure in obesity.
  • To determine if reduced energy expenditure contributes to excess body weight.
  • To critically assess the concept of

Summary:

  • Self-reported energy intake is unreliable, with obese individuals underreporting by up to 50%.
  • Obesity correlates with increased basal metabolic rate and 24-hour energy expenditure.
  • Caloric restriction lowers energy expenditure, but weight-maintenance post-obese individuals have normal metabolic rates.
  • Overfeeding studies show no reduced energy cost for weight gain in obese subjects.

Impact:

  • Challenges the notion of

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