Using Time-Weighted Averages of Total Daily Energy Expenditure to Estimate Energy Intake During a Weight Loss Intervention.

ABSTRACT:

Objective

The doubly labeled water (DLW) intake-balance method estimates energy intake (EI) during weight loss using the time-weighted average of total daily energy expenditure (TDEE) and changes in body energy stores. Because TDEE declines rapidly during the early phase of weight loss, an early additional measurement is recommended. This study aimed to develop regression models that estimate time-weighted TDEE using fewer interim measurements and determine if EI accuracy is maintained during a 12-month weight loss intervention.

Methods

Data from a behavioral weight loss intervention (Dietary Caloric Restriction versus intermittent Fasting Trial, "DRIFT") were used. TDEE, body weight, and body composition were measured at months 0, 1, 6, and 12. Regression models using only

SUBMITTER: Breit MJ 

PROVIDER: S-EPMC12867485 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature