What is bad for us? Fast food is very high in calories and saturated fat, which can cause obesity in the long term. Of course, obesity can cause heart disease, hypertension, diabetes, and many other serious health problems (Brownell). Most fast foods have very high sodium levels, which usually make us feel really bloated (Pietrangelo and Carey par. 8). Pietrangelo and Carey also state that “When you consume foods rich in carbohydrates and sugars, the bacteria that reside in your mouth produce acids. These acids can destroy tooth enamel, a contributing factor to dental decay. When tooth enamel is lost, it cannot be replaced. Poor oral health has also been linked to other health problems” (par.