High Fructose Corn Syrup

If High Fructose Corn Syrup is bad for us, why is it in so many different foods? Is there perchance, a Low Fructose Corn Syrup, or maybe a Medium Fructose Corn Sap? Our bodies were not created to metabolize large amounts of sugar and doing so can create health problems. Maybe this stuff is as bad as cigarettes and alcohol. If so, shouldn't it be regulated?