High fructose corn syrup is different than corn syrup is different than fructose, and manufacturers are required to list if it is high fructose corn syrup.

In general, fructose is less healthy than glucose, but HFCS is worse than fructose. Fructose (and HFCS) is almost all broken down into glucose, glycogen, lactic acid, or fat. If you eat more sugar than your body can digest and process, it is converted mostly into fat (long after you could use it in a 2-3hr ride).