Answer:
While there are many food safety hazards that can cause food contamination, most fall into one of three categories: biological, physical or chemical contamination.
Obesity may be on the rise in the United States because fast foods or food with high amounts of fat and calories tends to be cheaper then so called healthy foods such as salads and vegetables. As that’s the case people have the idea to chose the cheaper option. Another reason is because most people’s tastebuds have more of a liking to “fatty foods” then healthier options.