The reason that I have been eating regularly until now was because of my parents told me to eat regularly. My parents told me to eat regularly, because they keep telling me that if I eat regularly then I could grow healthy, strong, and smart. In addition, sometimes my parents insist me to eat specific food t such as eating apple would have a Meanwhile, I watched and talked to my friends about what they eat at home. They also eat three meals daily until we got to high school. During my high school year, some of my friends and classmates had change their eating habits; they didn’t eat regularly as when we were kids. Some of them would only eat once, or twice a day and just few of them would not eat at all, and the reasons are being lazy to eat, dissatisfy of their weight or the critique by their parents about their eating amount. However, my parents were still persuading to eat three meals every day, especially breakfast. Since my friends’ eating habits had change and my eating habits during our adolescents’ times, I had been curious about the cause of their change of their eating habits. This had motivated me to make further research more on the adolescents’ eating behavior.The adolescents’ eating behaviors are cause by their social environments, but they also can affect part of adolescents’ daily life. However, adolescents’ eating behavior includes what the adolescents are eating nowadays, do they eat regularly, how often do they eat junk food. This paper will investigate how the adolescents often adolescents eat regularly, and their concept of eating the meals.