I think the difference between high and not high Fructose corn syrup is only about 5%.
Increases appetite, promotes obesity
Studies show that high fructose corn syrup increases your appetite and promotes obesity more than regular sugar. “High fructose corn syrup also contributes to diabetes, inflammation, high triglycerides and something we call non-alcoholic fatty liver disease,” says Dr. Hyman, adding that it increases all the fat in the liver, which now affects over 90 million Americans.
“It can even cause fibrosis or what we call cirrhosis. In fact, sugar in our diet is now the major cause of liver failure and that makes sugar the leading cause of liver transplants,” he continues.
https://health.clevelandclinic.org/avoid-the-hidden-dangers-of-high-fructose-corn-syrup-video/
Regular home kitchen corn syrup is glucose, not fructose.
But commercial food manufacturers use high fructose corn syrup, which has both glucose and fructose.