Sucrose is a disaccharide, a double sugar composed of 1 glucose and 1 fructose. Maltose is 2 glucose molecules hooked together. Before artificial sweeteners became available, diabetics were told to sweeten their tea and coffee with small amounts of fructose since it didn't lead to the spikes and crashes in blood sugar that glucose did. They simply used a fruit exchange to cover it.

The jawbreaking sciency stuff is at https://en.wikipedia.org/wiki/Fructolysis. Fructose increases fat production in the liver and raises triglycerides when eaten in large quantities, not good for people with high cholesterol induced diseases.

I avoid HFCS myself, it just seems like a good idea. I avoid honey for the same reason, although it's nice in my winter tea once in a blue moon. I still prefer to ingest fructose as itself in fruits and some vegetables, the fiber helping digestion.

HFCS isn't a problem in most healthy people. It's just one of those highly processed foods that doesn't help the waistline and might, over a long period of time, lead to worsening of any genetically determined heart disease, liver disease, or stroke.

Never had time to watch it though. Maybe this winter when I have more time.

A client recommended it. Said it changed his life (physically).