Feedback Messages for Weight Loss

This trial aims to determine the most effective way to provide feedback to individuals working on weight loss. Participants will receive weekly feedback messages that focus on either positive reinforcement alone or positive reinforcement with suggestions for change. The trial seeks individuals with a BMI of 25 or above, weighing 175 kg or less, who own a compatible smartphone for tracking progress. Participants should not have recently undergone weight loss surgery or be on weight loss medications. This study suits those ready to engage in self-monitoring and receive constructive feedback on their weight loss journey. As an unphased trial, it offers a unique opportunity for participants to contribute to innovative strategies in weight management.

The trial does not specify if you need to stop taking your current medications, but you cannot participate if you have recently changed medications that affect weight or are currently using weight loss medications.

A previous study found that positive reinforcement helped people lose weight and become more active. Participants appreciated simple, encouraging messages, and no major side effects occurred. Similarly, research on combining positive reinforcement with improvement suggestions found that feedback emails were well-received and caused no harm. Overall, evidence shows that these feedback methods are safe and well-tolerated by participants.¹²³⁴⁵

Researchers are excited about this trial because it explores how personalized feedback can enhance weight loss strategies. Unlike standard treatments that often focus solely on diet and exercise plans, this approach uses weekly feedback messages to reinforce positive behaviors and suggest areas for improvement. By tailoring messages to individual progress, this method aims to boost motivation and adherence, potentially leading to more effective and sustained weight loss.

Research has shown that positive reinforcement can aid in weight loss. One study found that participants receiving positive feedback lost more weight than those who did not, with a noticeable difference in weight loss. In this trial, participants will receive weekly feedback messages in two conditions: positive reinforcement alone or combined with feedback on areas for change. Evidence suggests that combining encouragement with constructive suggestions can enhance weight loss efforts. This approach supports healthy habits while highlighting areas for improvement, helping to maintain motivation and progress.⁶⁷⁸⁹¹⁰