Resting Energy Expenditure is Overpredicted in Midlife Females: Examining the Accuracy of Predictive Equations and the Role of Lean Soft Tissue in Perimenopause

Estimated REE significantly overestimated caloric expenditure compared to mREE by an average of ∼215 kcals/day, with some equations (MS, M) more accurately estimating REE in perimenopausal women. The MS equation may be most beneficial for REE estimates in midlife women. LST may not be driving differences between mREE and predictive equations.