GLP-1 medicines can be effective in preventing weight regain after weight loss. By mimicking the action of the hormone GLP-1, these medications help control appetite and reduce cravings, making it easier to maintain a healthy weight. They also slow gastric emptying, which can help individuals feel full longer after eating. However, it is important to combine these medicines with a balanced diet and regular physical activity for the best results. Some studies have shown that patients who continue to use GLP-1s after losing weight are less likely to regain the weight compared to those who do not. Discussing a long-term plan with your healthcare provider can guide you in maintaining your weight loss effectively.