I think people here are mostly confusing healthy and weight control.
There was a video shown by duke, it was kind of to support the fat or sugar avoidance.
What it mainly said was three things:
1. A calorie isn't a calorie.
2. People who eat fructose are usually fat.
3. Fructose is causing unhealthy reactions in tee body.
Now after watching the all of the videos of the lecture, I came to the conclusion that a calorie is still a calorie in regard of weight control.
The problem is that according to the video fructose is making people eat more due to some reactions in the body.
Another problem is that fructose leaves some waste in the body which most people don't burn out and it then builds up in the liver and some other places. About glucose, it didn't say much.
That's an interesting point. Fructose fills liver glycogen stores. When the liver is full, the liver can't stop fructose from entering it, so it disposes of the excess by converting it into triglycerides. This is because fructose enters liver cells via Glu-T5 transporters which are insulin-independent. Therefore, an excessive intake of fructose produces high serum TGs, Non-Alcoholic Fatty Liver Disease, high VLDL-c & small, dense LDL-c which leads to CVD.
Glucose (or starches, which hydrolyse into glucose) also fills liver glycogen stores. When the liver is full, it down-regulates Glu-T2 transporters which are insulin-dependent. This effectively makes the liver insulin-resistant. This stops further glucose from entering the liver. Is this a better thing to have than fructose overload? No. An insulin-resistant liver secretes glucose even when serum insulin is high. This results in hyperglycaemia, which causes gradual glycation damage to just about everything.
Eating too many kcals of fats makes cells insulin-resistant. See above.
Eating too many kcals of proteins is a bit too complicated for me to go into right now.
Basically, chronically eating too many kcals of
anything is bad.
Edited by Nigeepoo, 19 February 2010 - 10:51 PM.