Sugar (sucrose) and high fructose corn syrup contain two molecules: glucose and fructose. Glucose is absolutely vital to life and is an integral part of our metabolism. Fructose, however, is very different. This molecule is not a natural part of metabolism and humans do not produce it. In fact, very few cells in the body can make use of it except liver cells. There it gets turned into fat, which is then secreted into the blood. When people eat a diet that is high in fructose, the liver gets overloaded and starts turning the fructose into fat. This leads to increased food intake and decreased fat burning. Sugar sets up an extremely powerful biochemical drive to make you eat more, burn less, and gain fat. Managing your fructose intake is important, as trying to exert willpower over this powerful drive can be next to impossible.

Alma Naranjo, Success Weight Loss, SuccessWeightLoss.ca