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Comparing fructose- and glucose-sweetened beverages


From C.A.M. Report

Comparing fructose- and glucose-sweetened beverages

Overweight and obese subjects consumed glucose- or fructose-sweetened beverages, and researchers from the US and Japan compared the effects.

A new TV commercial in the US claims there's no difference. Not so, according to these results. Here are the findings, and the potential significance of this research.

First, the details.

    * 32 overweight and obese adult men and women were observed for 10 weeks.
    * They drank beverages sweetened with glucose or fructose that accounted for 25% of their daily calorie intake.

And, the results.

    * Participants in both groups put on about the same amount of weight.
    * Fasting triglyceride blood levels increased 10% with glucose but not with fructose.
    * Changes recorded with fructose only
          o Increased belly fat
          o Production of fat by the liver
                + aka hepatic de novo lipogenesis (DNL)
          o Increased markers of altered lipid metabolism (eg, apoB, LDL [bad] cholesterol)
          o Increased concentrations of remnant-like particleâ€"triglyceride and â€"cholesterol
                + Newly proposed risk factors for heart disease
          o Increased fasting blood sugar and insulin levels
          o Decreased insulin sensitivity

The bottom line?
The authors concluded, "Dietary fructose specifically increases DNL, promotes dyslipidemia, decreases insulin sensitivity, and increases visceral adiposity in overweight/obese adults."

An accompanying editorial provides perspective. "While these symptoms are telltale signs of metabolic syndrome, which raises a person's risk of heart attack, we still don't know what the long term implications of fructose consumption on such a risk might be."