Time-restricted Eating and High-intensity Interval Training for Metabolic Health in Adults With Overweight/Obesity

Launched by NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY · Jun 17, 2025

Keywords

ClinConnect Summary

This clinical trial is studying whether combining a special eating pattern called time-restricted eating with high-intensity interval training (short bursts of intense exercise) can help reduce body fat and improve health in adults who are overweight or have obesity. The study will last for 12 months and will compare people following this plan with a control group who do not. Researchers will check things like body fat, fitness, blood sugar, cholesterol, and blood pressure before the study starts, halfway through, and at the end. They will also look at diet, sleep, appetite, and how well participants stick to the plan. The study will be done remotely, with support and follow-up over the phone.

Adults who might join need to have a body mass index (BMI) of 27 or higher, which means they are overweight or obese, and be able to walk or bike for at least an hour. People who already exercise intensely once a week or more, have certain health conditions like diabetes or heart disease, take certain medications, or work night shifts won’t be eligible. If you join, you can expect to follow the eating and exercise plan on your own, with regular check-ins by phone, and to have your health measured a few times during the year. This study aims to see if this combined approach can improve health safely and effectively for people struggling with weight.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Body mass index ≥ 27 kg/m²
• • Able to walk or ride a bike \> 60 min
• Exclusion Criteria:
• • On-going pregnancy
• • Lactation within 24 weeks of study commencement
• • High-intensity exercise ≥ 1/week
• • Habitual eating window ≤12 hours/day
• • Taking hypertension, glucose-, or lipid-lowering drugs
• • Body mass variation ≥ 4 kg three months prior to study commencement
• • Known diabetes mellitus (type 1 or 2) or cardiovascular disease
• • Working night shifts