Sweet Sugar

Fructose is a natural, simple sugar commonly found in fruits and honey. Fructose is a sugar found naturally in fruits. Man-made fructose is used as a sweetener in many foods, including baby food and beverages.

Fructose supplements given within one hour of birth increased the plasma concentration of fructose, while the supplements given 96 hours after birth had little effect on sugar concentrations. Effect of lactose supplement also changed with maturity.

Fructose is used as a substitute for sucrose (common sugar) because it is less costly and has little effect on blood glucose measured. Often Fructose is consumed as fructose corn syrup is high in corn syrup (glucose) which has been enzymatically treated, by glucose isomerase to convert glucose to fructose part of what makes softer.

Fructose is metabolized differently from other sugars. A load of fructose leads to an accumulation of fructose-1-phosphate in cells, which may partially deplete intracellular ATP levels in sensitive individuals.

Fructose is found naturally in foods such as apples and pears, and Rao said, people have been eating it for generations. However, what has changed in recent decades is that many people in the U.S. eat much more fructose and in a purer form rather than mixed with other sugars.

Fructose is commonly called fruit sugar "because it is the main sugar in many fruits. However, fructose is now produced from corn syrup, which is derived from corn.

Fructose differs in several ways from glucose, the other half of the sucrose (sugar) molecule. Fructose is absorbed from the gastrointestinal tract by a different mechanism than glucose. Fructose is a natural sugar found in many fruits and vegetables. Table sugar or sucrose is half fructose and half glucose.

Fructose and other sugars are carbohydrates, an important source of energy for the body. Fructose-fed subjects lose minerals. They had fecal excretions of iron and magnesium than did subjects fed sucrose. Fructose is a different story. It "seems to behave more like fat from the hormones involved in regulating body weight," explains Peter Havel, associate professor of nutrition at the University of California, Davis.

Fructose does not stimulate insulin secretion and it does not directly increase the levels of glucose in the blood. As such, a diet high in fructose would result in low elevation of blood glucose and release less insulin.

Fructose and glucose, occurs in fruits, honey, syrups and it is also found in some vegetables. It is a component, with glucose, disaccharide sucrose, or table sugar. Fructose converts to fat more than any other sugar. It is also known to increase triglycerides significantly.

Fructose malabsorption occurs because of the absence of body fructase, an enzyme normally produced by the small intestine. In patients with IBS, there is evidence to suggest that the faster transit of the small intestine could provide nutrients not absorbed in the colon and thus lead to increased production of gas, causing pain and diarrhea .

Fructose malabsorption should not be confused with hereditary fructose intolerance (HFI), a condition in which the liver enzymes that break down fructose are deficient. In patients with fructose malabsorption, the small intestine fails to absorb fructose properly. Fructose is a simple sugar commonly found in fruits and honey.