Obesity

The increase in fat-free mass during weight loss does not prevent greater than predicted reductions in resting energy expenditure in recreational athletes

Int J Obes (Lond)Published Secondary analysis of two weight loss studies

Authors' conclusion

Our findings suggest that even increases in FFM, by means of RT and adequate protein intake does not prevent the decline in REE, nor the onset of GPDR in recreational athletes subjected to caloric deficits and fat loss.

Study context

Population
Recreational athletes (14 F; 22 M) undergoing short-term weight loss with RT and adequate protein intake14 F
Participants
36 athletes

Primary result

As reported in the abstract

Significant reduction in resting energy expenditure (REE)
≈−140 kcal/d; p < 0.001
GPDR based on prediction equation
p < 0.001

Original publication

The increase in fat-free mass during weight loss does not prevent greater than predicted reductions in resting energy expenditure in recreational athletes. Int J Obes (Lond). Published 30 July 2026. doi:10.1038/s41366-026-02179-z

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