No need to replace fructose with glucose in foods

There is no benefit in replacing fructose - the sugar most commonly blamed for obesity - with glucose in commercially prepared foods, says research. Researchers at St. Michael's Hospital here have found that when portion sizes and calories are the same, fructose does not cause any more harm than glucose.

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"Despite concerns about fructose's link to obesity, there is no justification to replace fructose with glucose because there is no evidence of net harm," said John Sievenpiper from St Michael's Hospital.The study found that consuming fructose may increase total cholesterol and postprandial triglycerides, a type of fat found in blood. However, fructose did not appear to affect insulin production, other fat levels in the blood stream or markers of fatty liver disease any more than glucose did. In fact, fructose showed potential benefits over glucose in some key risk factor categories.

"Some healthcare analysts have thought fructose to be the cause of obesity because it's metabolised differently than glucose," said Sievenpiper."In calorie-matched conditions, we found that fructose may actually be better at promoting healthy body weight, blood pressure and glycemic control than glucose", he added.Fructose, a simple sugar found in honey, fruit, vegetables and other plants, is also the basis of high-fructose corn syrup - a sweetener often found in commercially prepared foods. The combination of both fructose and glucose produces sucrose, generally known as table sugar. Sievenpiper said he feels that over consumption, rather than a type of sugar, is one of the leading causes of obesity. The findings were published in the journal Current Opinion in Lipidology.