Public health policies play a critical role in obesity management by creating environments that promote healthy eating and physical activity. These policies can include initiatives like calorie labeling in restaurants, restrictions on sugary drink sales, and funding for community fitness programs. Governments can also work to regulate food advertising to children and improve access to affordable healthy foods. By addressing the broader environmental and societal factors contributing to obesity, public health policies help create a supportive infrastructure that makes it easier for individuals to make healthier choices. Effective policy changes are necessary for tackling the obesity epidemic on a large scale.