They all contain an
ingredient which has been found capable of turning flab into calorie-burning
‘brown’ fat.
The study, published in the International Journal of
Obesity recorded
what happened when scientists gave mice amounts of
resveratrol equivalent to humans consuming 12 ounces of fruit per day.
They discovered that the
mice gained 40 per cent less weight than rodents which were not fed the
resveratrol.
Scientists behind the study
believe that the mice were able to change their excess ‘white’ fat to active
‘brown’ fat which burns calories and in turn reduces weight gain. The research
suggests that other ‘polyphenol’ chemicals in fruit may have a similar
effect.
Professor Min Du, lead researcher in the study and an academic at Washington
State University said: “Polyphenols in fruit, including resveratrol, increase
gene expression that enhances the oxidation of dietary fats so the body won’t be
overloaded.
“They convert white fat into
beige fat which burns lipids (fats) off as heat, helping to keep the body in
balance and prevent obesity and metabolic dysfunction. We are using resveratrol
as a representative for all the polyphenols.”
He said that blueberries,
strawberries, raspberries, grapes and apples are especially rich in the
ingredient. Red wine is also known to contain resveratrol although to a lesser
extent than grapes.
However, Prof Du said that
many of the beneficial components contained in wine “are insoluble and get
filtered out during the wine production process.”
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