Fructose is Not All That Bad: New Study

 , Toronto  |  Updated: February 03, 2015 15:15 IST

Fructose is Not All That Bad: New Study

Fructose, which is naturally found in fruit, vegetables and honey, is not responsible for non-alcoholic fatty liver disease, says a promising research. The consumption of fructose, which is also found in sucrose and high-fructose corn syrup - the two most common sweeteners in commercially prepared foods - has been frequently debated for its link with non-alcoholic fatty liver disease.

Some believe there is something unique about the fructose molecule or the way it is metabolized and blame it for the obesity epidemic. A latest meta-analysis of all available human trials has found that fructose in and of itself is not to blame for the increase in non-alcoholic fatty liver disease.

"But excess consumption of calories can contribute to the disease, regardless of whether those calories came from fructose or other carbohydrates," said lead author John Sievenpiper, a researcher in the Clinical Nutrition and Risk Factor Modification Centre of St. Michael's Hospital here.

"The one thing fructose is believed to do above all else is give you fatty liver disease, which some say is a starting point for metabolic syndrome," added Sievenpiper. "But we found it behaves no differently than glucose or refined starches. It is only when you consume excess calories in the form of fructose that you see a signal for harm but no more harm than if you consume excess calories as glucose," he explained.

Non-alcoholic fatty liver disease is one cause of a fatty liver, occurring when fat is deposited in the liver. Unlike alcoholic liver disease, it is not due to excessive alcohol use. It is when fructose is over consumed providing excess calories that you see its adverse effects on the health, but no more than when other carbohydrates are over consumed.

"The debate over the role of fructose in obesity, fatty liver and other metabolic diseases has distracted us from the issue of over consumption," he observed. The results should serve to remind people that the excess calories, whether they are from fructose or other sources, are the issue, said the study published in the European Journal of Clinical Nutrition.

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