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Chronic dieting syndrome can have negative physiologic and psychological consequences. Metabolic differences between female chronic dieters with normal and with low resting energy expenditures (REEs) have not been fully examined.

To determine whether differences existed between 2 groups (n = 15/group) of female chronic dieters aged 21–49 y with either normal (≥100% of predicted) and with low (≤85% of predicted) REEs based on the equation of Mifflin et al.

The sample was a nonrandomized convenience sample and the 2 groups were compared in an observational study design. Body composition, aerobic fitness, physical activity, glucose and insulin responses, leptin and thyroid hormone status, dietary intake, and dietary restraint were measured.

Both groups were similar with respect to age, height, weight, and body mass index. The normal-REE group had a higher …