There are a couple of things you should know about high fructose corn syrup (HFCS). Two of the enzymes used, alpha-amylase and glucose-isomerase, are genetically modified to make them more stable.
Enzymes are actually very large proteins and through genetic modification specific amino acids in the enzymes are changed or replaced so the enzyme’s “backbone” won’t break down or unfold. This allows the industry to get the enzymes to higher temperatures before they become unstable.
If you’re trying to avoid genetically modified foods you should avoid HFCS as it’s almost certainly made from genetically modified corn, and then it is processed with genetically modified enzymes. Some estimates claim that virtually everything (almost 80 percent) of what we eat today has been genetically modified at some point, since the use of HFCS is so prevalent in processed foods.

Image: FreeDigitalPhotos.net
But there’s another reason to avoid HFCS. You may think that because it contains fructose (which is associated with fruit, a natural food) that it’s healthier than sugar, but a team of investigators at the USDA has discovered that this just isn’t so.
Sucrose is composed of glucose and fructose. When sugar is given to rats in high amounts, the rats develop multiple health problems, especially when the rats were deficient in certain nutrients, such as copper.
The researchers wanted to know whether it was the fructose or the glucose that was causing the problems, so they repeated their studies with two groups of rats; one given high amounts of glucose, and one given high amounts of fructose.
The glucose group was unaffected but the fructose group had disastrous results. The male rats didn’t reach adulthood. They had anaemia, high cholesterol and heart hypertrophy, which means that their hearts enlarged until they exploded.
Are you sure you want to risk your health? Are you sure HFCS isn’t one of the things making it hard for you to keep a healthy weight? Are you sure the food industry has your best interests at heart?
Click here for a more detailed explanation
http://www.westonaprice.org/motherlinda/cornsyrup.html