An objective estimate of energy intake during weight gain using the intake-balance method.

ABSTRACT:

Background

Estimates of energy intake (EI) in humans have limited validity.

Objective

The objective was to test the accuracy and precision of the intake-balance method to estimate EI during weight gain induced by overfeeding.

Design

In 2 studies of controlled overfeeding (1 inpatient study and 1 outpatient study), baseline energy requirements were determined by a doubly labeled water study and caloric titration to weight maintenance. Overfeeding was prescribed as 140% of baseline energy requirements for 56 d. Changes in weight, fat mass (FM), and fat-free mass (FFM) were used to estimate change in energy stores (ΔES). Overfeeding EI was estimated as the sum of baseline energy requirements, thermic effect of food, and ΔES. The estimated overfeeding EI was then compared

SUBMITTER: Gilmore LA 

PROVIDER: S-EPMC4135491 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature