In certain countries, the number of people facing with health problems is increasing due to excessive consumption of unhealthy food. Therefore, governments have to rate a higher tax on junk food. I agree with some point. I will discuss and render my opinion. Fast food contains many extremely harmful nutrients such as excess sugar and lipids. These nutrients will train form into big molecules and accumulate and dog blood vessel. Also, cooking methods such as repeated frying oil and poor quality ingredients. As a result, this kind of food can cause various illness. For example, cancer and obesity. However, the advantages of fast food are cheap, fast and convenient. Therefore, fast food is a good choice for low-income people who are not able to eat at restaurant often or who are in hurry. Undoubtedly, imposing a higher tax on fast food will impact food prices. Therefore, it may cause people to change their minds to eat more useful food at a similar price. Although th...