aimone - HFCS is 1 part glucose and 1 part fructose, it is sugar
your body, while enjoying the calories, does not recognise the fact that it has consumed the fructose part so you do not feel satisfied after consuming.. this is unlike protein and fats, and the other building blocks of sugar (glucose and galactose, which when combined together = lactose, the sugar which is in milk)
interested to know your theory as to why corn syrup is not suguar