High Fructose Corn Syrup (HFCS) is a sweetener made from corn starch by converting some glucose into fructose. Commonly used in soft drinks, cereals, yogurts, sauces, and other processed foods, HFCS became popular because it is inexpensive, easy to use, and provides consistent sweetness. Although often viewed differently than table sugar, its fructose content is very similar. The bigger concern is excessive consumption of added sugars from any source.