Introduction The prominence of social media platforms has increased in recent years, drastically altering how youth interact, communicate, and view themselves and the world around them. While social media has many advantages, its impact on the rise of obesity among teenagers has been a source of concern. This paper investigates the varied effects of social media on adolescent obesity, focusing on how these platforms lead to unhealthy lifestyles and weight-related difficulties. Sedentary behavior and decreased physical activity The pervasiveness of social media fosters sedentary behavior among youths. Endless hours spent reading through feeds, binge-watching movies, or participating in online debates result in decreased physical activity. Adolescents are frequently drawn to screens rather than participating in outdoor activities, sports, or workouts. Obesity is greatly exacerbated by a lack of mobility and exercise. Unhealthy Food and Eating Habits Marketing Social media advertisements and sponsored content heavily promote unhealthy meals, beverages, and fast-food businesses. Adolescents are frequently exposed to high-calorie, low-nutrient options as a result of influencers and celebrities advocating these products. Furthermore, the habit of mindless nibbling when on social media contributes to an excess of unhealthy foods, increasing weight-related difficulties. Eating Disorders and Body Image Issues Teenagers are typically dissatisfied with their bodies and have a distorted self-image as a result of social media platforms that encourage unrealistic body ideals. Constant exposure to idealized and altered photos puts pressure on people to conform to artificial beauty standards. In order to meet these expectations, some teenagers turn to excessive diets or develop eating disorders, negatively damaging their physical and emotional health. Peer Pressure and Cyberbullying Have an Impact Teenagers are especially vulnerable to peer pressure, which is exacerbated by social media. Platforms can be used for cyberbullying or body shaming, which can have a negative influence on a teen's self-esteem and mental health. As a result, some adolescents resort to comfort eating or adopt stress-related eating practices, which contribute to weight gain and obesity. Conclusion Social media's ubiquitous influence on youth has a variety of consequences for their physical and mental health, including contributing to the growth in obesity. Sedentary lifestyles, exposure to unhealthy food marketing, body image worries, peer pressure, and cyberbullying all play a part in the development of obesity in adolescents. Addressing these concerns would necessitate a collaborative effort involving parents, educators, policymakers, and the social media sector. Encouragement of healthy habits, promotion of positive body image, stricter controls on food advertising, and promotion of digital literacy among teens are all critical measures in reducing the impact of social media on teenage obesity. Finally, maintaining a balanced and healthy interaction between social media and real-life activities is critical to reducing rising teen obesity rates.