If you got an hour and a half to watch a lecture, this is the lecture you gotta watch.
"Long story short.
fructose isn't metabolised properly by the liver and has the same effect on the body as alcohol, without the drunkeness. Fructose produces dense LDL cholesterol (arterial plaque) when metabolised.
Fructose is in nearly 100% of American foodstuffs, from baby food to soy sauce. The USDA will not declare fructose as harmful because of the huge economic impact.
High fibre diets can mitigate some of the fructose to an extent as the fibre traps it in the bowel and it is digested by bacteria (get fat, or fart).
It's not about low fat diets, fat can be burned, fructose cannot."