Banning Vending Machines

Fast food has become an inter-continental meal. Recently, the popularity of fast food has spread to school canteens, colleges and universities. Nowadays, it is believed that junk food is the origin of many health and behavioral problems among students. I believe that the sale of such food through vending machines on campus should be banned.
There are several reasons why selling junk food on campus must be stopped. The consumption of fast food by university students has increased greatly over the past years. Students no longer have breakfast or lunch at home. Most of them find home-made food a waste of time or tasteless. They use much of their pocket money to buy snacks that are rich in oil, sugar, fat and salt instead. As its name shows, junk food is all types of food with very little nutritional value. Most students, however, do not realize that what they are eating is the source of much of their behavioral and health problems. The sugary and fatty food such as, potato chips or chocolate bars contains a huge amount of calories which cause hyperactivity and poor concentration among a lot of students during lectures. This unhealthy diet explains, in part, the relatively poor academic performance of a big number of students. Another reason why fast food should not be sold at on campus is that the poor nutritional value of junk food has contributed to the increase of many diseases including obesity and high blood pressure. It is rare to see students taking out a home-made snack from their sandwich bag or a bottle of fresh juice that can give them just enough energy in order to be active and concentrate during classes.
On the other hand, a big number of people strongly believe that it is extremely difficult to stop selling junk food on campus. For one thing, it is difficult to replace vending machines by restaurants that can sell fresh healthy food. Besides, I believe that junk food has become a part of modern lifestyle. Students as well as most university teachers are often too busy to prepare a healthy, fiber-rich snack to have during recess.
In conclusion, because of the negative effects of junk food on the behaviour, performance and health of students, it is clear that we should think seriously about stopping its sale through vending machines. In my opinion, although many people have become addicted to fast food there is always a way to replace it on campus and elsewhere.