In this century is the 21st century. Junk food has all around the global and mostly worse are available over the world. We will see it more and more in everywhere we go such as in grocery, convenience stores, the best restaurant and on the television. And it looks interesting. In formal, junk food refers to food that has a lot of calories and little nutrition. Of course, the meaning of junk food is depends on who you asked. Moreover, we known that junk food has low value in terms of nutrition and people doesn’t feel as fool when they eat them which is can lead overrating. And another problem is junk food will replace food which has more nutrition.