Objective versus Self-Reported Energy Intake Changes During Low-Carbohydrate and Low-Fat Diets.

ABSTRACT:

Objective

This study aimed to compare self-reported with objective measurements of energy intake changes (∆EI) during a 1-year weight-loss intervention with subjects randomized to low-carbohydrate versus low-fat diets.

Methods

Repeated body weight measurements were used as inputs to an objective mathematical model to calculate ∆EI_Model and to compare with self-reported energy intake changes assessed by repeated 24-hour recalls (∆EI_Recall ).

Results

∆EI_Recall indicated a relatively persistent state of calorie restriction of ~500 to 600 kcal/d at 3, 6, and 12 months with no significant differences between the diets. ∆EI_Model demonstrated large early decreases in calorie intake > 800 kcal/d followed by an exponential return to

SUBMITTER: Guo J 

PROVIDER: S-EPMC6392435 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature