The goal of this clinical trial is to learn if lifestyle intervention with information about ketosis state supports weight reduction in overweight adults.

Researchers will compare an App-based lifestyle intervention with self-monitoring of breath acetone vs. lifestyle intervention alone.

Participants will:

Get a lifestyle intervention via the LIM-App for 12 months. Report body weight.

Background: Overweight and obesity are an increasing problem. Therefore, the Low-Insulin-Method was developed to support overweight and obese people in weight loss.

Method: In a randomized controlled clinical trial, the effect of the lifestyle intervention program 'Low-Insulin-Method', delivered by the Low-Insulin-App including low-carb diet, physical activity, self monitoring of weight, and self-monitoring of breath acetone (SMBA) is examined compared to a control group without information about ketosis level. Weight change will be compared after 3 and 12 months.

Objective: The aim is to develop a training and counseling program for overweight or obese individuals with diabetes risk or type 2 diabetes, which can be used both for primary and for tertiary prevention of overweight-related diseases.

Inclusion Criteria:

• Body Mass Index > 25kg/m2

Exclusion Criteria:

-

upon request