Final answer:
High fructose corn syrup (HFCS) has become widely used as a sweetener in the US due to its lower cost compared to granulated sugars, the abundance of corn in the US, and government policies that make cane sugar more expensive. HFCS also offers advantages for food manufacturers.
Step-by-step explanation:
High fructose corn syrup (HFCS) has become widely used as a sweetener in the US for several reasons. One reason is that it is cheaper to produce compared to granulated cane and beet sugars. HFCS is made from corn, which is abundant in the US, leading to lower costs and higher availability. Another reason is that corn subsidies and tariffs on imported sugar make cane sugar more expensive, leading manufacturers to choose HFCS as a more cost-effective option. Additionally, HFCS offers certain advantages for food manufacturers, such as its ability to extend the shelf life of products and enhance their flavor.