Body-size dependence of resting energy expenditure can be attributed to nonenergetic homogeneity of fat-free mass.

@article{Heymsfield2002BodysizeDO,
  title={Body-size dependence of resting energy expenditure can be attributed to nonenergetic homogeneity of fat-free mass.},
  author={Steven B. Heymsfield and Dympna Gallagher and Donald P. Kotler and Zimian Wang and David B. Allison and Stanley Heshka},
  journal={American journal of physiology. Endocrinology and metabolism},
  year={2002},
  volume={282 1},
  pages={
          E132-8
        }
}
An enduring enigma is why the ratio of resting energy expenditure (REE) to metabolically active tissue mass, expressed as the REE/fat-free mass (FFM) ratio, is greater in magnitude in subjects with a small FFM than it is in subjects with a large FFM. This study tested the hypothesis that a higher REE/FFM ratio in subjects with a small body mass and FFM can be explained by a larger proportion of FFM as high-metabolic-rate tissues compared with that observed in heavier subjects. REE was measured… 

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