Time-restricted eating and high-intensity interval training are two efficient methods for improving health and body composition. In this study, we will investigate how 12 months of time-restricted eating and high-intensity interval training affect fat mass in adults with BMI ≥ 27 kg/m 2 .

Participants are randomly assigned to one of two groups for 12 months:

• Intervention group: time-restricted eating (food intake is limited to a maximum of 10 hours per day) and high-intensity interval training. The participants will receive a diet and exercise guidance session, and then follow-up by telephone during the intervention period.


• Control group*: No intervention

The participants will have their body composition, physical fitness, and blood pressure measured, and blood samples will be taken to measure blood sugar and lipids. The study is carried out at the Faculty of Medicine and Health Sciences, NTNU and has been approved by the Regional Committee for Medical and Health Research Ethics.

Criteria for participation:

• Men and women
• Age: 18-50 years
• BMI of 27 kg/m² or more
• A habitual time window for when you eat that is 12 hours or more daily
• Able to walk on a treadmill or ride a bike for at least 60 minutes
• Does not perform high-intensity interval training more than once a week.
• Understands oral and written Norwegian or English.

Wish to participate?

Please contact Kamilla La Haganes for more information.