Conclusion Factors such as industrialization, a greater opening up to western culture, advertisement and mass effect of social media, no time for preparing food at home, urbanization and rapid development of the fast food industry, are the main factors which have led to the growth of fast food all over the world. Consumption of fast foods is also increasing day by day. As a result of these factors stated above, the eating habits of teens and children are changing which leads to greater obesity problems and other health related issues in teens and young children. Fast-food outlets are giving rise to both positive and negative effects after entering into the land of big-business. The positive effects are related to increasing job opportunities in a country which also helps in the economic growth of the country and in the development of the country in general. Whereas, the many negative effects relate to well documented public health issues and obesity problem in the youths and children.