Caloric and Macronutrient Intake Differ with Circadian Phase and between Lean and Overweight Young Adults.

ABSTRACT: The timing of caloric intake is a risk factor for excess weight and disease. Growing evidence suggests, however, that the impact of caloric consumption on metabolic health depends on its circadian phase, not clock hour. The objective of the current study was to identify how individuals consume calories and macronutrients relative to circadian phase in real-world settings. Young adults (n = 106; aged 19 ± 1 years; 45 females) photographically recorded the timing and content of all calories for seven consecutive days using a smartphone application during a 30-day study. Circadian phase was determined from in-laboratory assessment of dim-light melatonin onset (DLMO). Meals were assigned a circadian phase relative to each participant's DLMO (0°, ~23:17 h) and binned into 60° bins. Lean

SUBMITTER: McHill AW 

PROVIDER: S-EPMC6471585 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature