Internal medicine

Sociology

Calorie restriction

Mathematics

Obesity

Body weight

Demography

Circumference

Geometry

Waist

Body mass index

Low calorie diet

Weight loss

Calorie

Medicine

New England Journal of Medicine

We randomly assigned 139 patients with obesity to time-restricted eating (eating only between 8:00 a.m. and 4:00 p.m.) with calorie restriction or daily calorie restriction alone. For 12 months, all the participants were instructed to follow a calorie-restricted diet that consisted of 1500 to 1800 kcal per day for men and 1200 to 1500 kcal per day for women. The primary outcome was the difference between the two groups in the change from baseline in body weight; secondary outcomes included changes in waist circumference, body-mass index (BMI), amount of body fat, and measures of metabolic risk factors.

Calorie Restriction with or without Time-Restricted Eating in Weight Loss