Habits start young, and it is up to the environment to cultivate healthy habits in children, the school being the next-best home of learning and nurturing. With the rise in the incidence of obesity and overweight amongst youngsters and college students the dark -side of junk-food ‘cannot be overlooked. The main objectives are to assess the Knowledge of junk foods and its effect on health among students, second objective was to assess the attitude of junk foods and its effect on health among students. In this research quantitative research approach, non- experimental descriptive research design was utilized to assess the knowledge and attitude regarding junk foods its effect on health. The data was analyzed in the terms of objectives of the study by using the descriptive statistics. The findings of the study showed that among 30 samples in selected colleges, 7% students have average knowledge, 57% students have good knowledge, and 37% students have excellent knowledge on junk foods and its effect on health. In regard to attitude 10% students have average attitude, 55% students have good attitude, and 35% students have excellent attitude on junk foods and its effect on health.