jam with corn syrup

They didn't have my usual jam at the store, sweetened with grape juice, but they did have a new mostly fruit jam with corn syrup. Not the high fructose kind, just corn syrup. I know this is in Ensures, and my pharmacist once told me that corn syrup is not the same as HFCS, yet I can't handle Ensures very well since my resections.

I can't find much info about plain corn syrup—anyone know if it's an okay sugar for us to have?