A pattern of gas and bloating may be an indication that a tumor is growing, especially if it worsens or is accompanied by bleeding. While the formation of a tumor may not be enough to cause a total obstruction, the increasing pressure placed on the colon walls can cause distress and even cramping in the upper intestinal tract.
The more general term glucose syrup is often used synonymously with corn syrup, since glucose syrup is in the United States most commonly made from corn starch.
High Maltose Corn Syrup is another common sweetener -- simply the result of processing corn in a different way. Crystalline fructose is fructose derived from corn, though it is thought to be about 20 percent sweeter than sugar and 5 percent sweeter than high-fructose corn syrup.