high fructose corn syrup means: The HFCS ingredient is primarily used for commercial drinks and food. Using corn starch, it is transformed to dextrose rich syrup. Using isomerization the dextrose rich corn syrups can be further processed to make fructose. To make commercial corn syrups, the fructose and dextrose syrup are combined. The sweetness of fructose can be 130-180 times sweeter than that of sugar. (in Cooking Dictionary)