Why does the author include the fact that the American government spends $190 billion a year in obesity-related health care? To encourage people to diet To shame the American public To show that obesity is a serious health problem To argue that the government needs to be spending more on research

To show that obesity is a serious health problem.

Explanation:

Obesity is a serious health problem which is also responsible for the causes of many diseases such as high blood pressure, diabetes and heart disease etc but if the obesity increases from a certain limit then it cost the individual's life and the person will die so we can concluded that obesity is a serious health problem so that's why the US government spend a lot of money to decrease the obesity in the people.