Table 1 Overview of the thematic modules in the STARKIDS intervention
Overview | Concept(s) | Educative/interactive texts | Animated films | Reflection tools | Serious games |
|---|---|---|---|---|---|
STARKIDS Start | |||||
 Introduction to the program | / | X |  |  |  |
 Information about weight development in childhood and adolescence | / | X | X |  |  |
 Introduction eating and drinking | - Meal frequency and timing - Drinks, with emphasis on sweet beverages - Composition of a healthy diet - Frequently asked questions about drinks and foods | X | X | X | X |
 Introduction activity and media | - Benefits of physical activity - Adequate amounts of physical activity - Opportunities for physical activity and opportunities to discover new places for physical activity - Dealing with barriers and obstacles for physical activity - Adequate times of media consumption - Identifying marketing mechanisms for unhealthy foods and drinks - Tips for media consumption | X | X | X | X |
 Introduction family life | - Family as a support system - Listening to each other - Joint family activities - Eating meals together - Consolation and reward (other than food) | X | X | X |  |
 Introduction in mindfulness | - Basic information about mindfulness and how it can support a health weigh development process | X |  |  | X |
Eating and drinking | |||||
 Information about the dietary concept in STARKIDS | - Why strict diets do not work - What is different in STARKIDS | X | X |  |  |
 Meal frequency and timing | - Information on meal frequency and timing - Frequently asked questions on this topic | X | X | X |  |
 Drinks | - Drinks, with emphasis on sweet beverages - Frequently asked questions on the topic | X | X | X | X |
 Primary focus: energy density | - Explanation of the dietary energy density concept - Practical use of the dietary energy concept in daily life - How to make clever food choices based on the dietary energy density concept - Frequently asked questions on the topic | X | X | X | X |
 Portion sizes | - Information about adequate portion sizes - Examples and tips for choosing adequate meals and snacks | X |  |  |  |
 Tips for everyday life | - Tips for grocery shopping - Frequently asked questions about everyday meals - Information about the Nutri-Score | X | X |  |  |
 Uncontrolled eating | - Information about binge eating, emotional eating, night eating, and grazing - Strategies for avoiding uncontrolled eating - Information for further help in case of eating disorder pathology | X |  |  |  |
 Mindful eating and drinking | - Information about how mindfulness can support healthy saturation and indulgence | X |  |  | X |
Activity and media | |||||
 Enjoying physical activity | - Information about fitness, energy consumption, and bodily reactions to physical activity - Supporting the fit between individual motives and corresponding possibilities to be physically active - Overview of different types of sports and exercise - Offering autonomous activity choices | X | X | X | X |
 Exploring locations for physical activity | - Tips for different locations for physical activity - Information about cycling - Strategies for integrating more physical activity in everyday life - Reflecting individual locations for physical activity | X | X | X |  |
 Being physically active together | - Considering possible buddies for being active together, e.g., in clubs, with family members, in the neighborhood - Promotion of family activities - Illustrating role models from the obesity context to enhance the feeling of relatedness | X | X | X | X |
 Becoming physically active (in daily life, in leisure time, in sports clubs or schools) | - Information about age-appropriate amounts of physical activity - Tips for keeping motivated for physical activity in everyday life - Summary and tips for parents to support their children/adolescents - Reflection of and individual feedback about the amount of weekly physical activities | X | X | X | X |
 Media consumption | - Information about the age-appropriate amounts of screen time - Tips for children’s media consumption - Identifying marketing mechanisms for unhealthy foods on TV, social media, grocery shopping - Introduction to compulsive gambling and further help | X | X |  | X |
 Mindful activity and media consumption | - Information about how mindfulness can help through a balanced amount of activity and rest | X |  |  | X |
Family life | |||||
 Strengthening family life | - Listening to each other - Talking about difficult topics - Strengthening family cohesion | X | X | X |  |
 Dealing with stress | - Associations between stress and overweight/obesity - Identifying emotions - Possibilities for dealing with difficult emotions, negative thoughts and stress | X | X | X |  |
 Sleeping habits | - Associations between stress, sleep, and weight increase - Tips for helpful sleeping habits | X | X |  | X |
 Weight stigmatization | - Individual appearances - Tips for dealing with stigmatization | X |  |  |  |
 Self-worth | - Developing a positive relationship to oneself - Strengthening a positive body image | X |  |  | X |
 Mindful dealing with oneself | - Information how mindfulness can support personal changes and healthy sleep | X |  |  | X |
STARKIDS Keep on | |||||
 Reflection of the last year with the STARKIDS program | / | X |  |  |  |
 Dealing with setbacks | - Identifying risk situations and setbacks - Reflections of strategies against setbacks - Strategies for sustained change | X |  |  |  |
STARKIDS Joker | |||||
 Strengthening motivation and commitment | - Reflecting individual obstacles and reasons for staying with the program - Developing strategies to strengthen commitment - Tips for introducing change one step at a time | X |  | X | X |