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04.09.2013 Health & Fitness

Fresh fruits help prevent diabetes — Fruit juice boosts risk

By Daily Graphic
Fresh fruits help prevent diabetes — Fruit juice boosts risk
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More than 187,000 nurses, doctors and other professional caregivers were enrolled.

Their health was monitored over the following years, and they regularly answered questionnaires on their eating habits, weight, smoking, physical activity and other pointers to lifestyle.

Around 6.5 per cent of the volunteers developed diabetes during the studies.

People who ate at least two servings of certain whole fruits, especially blueberries, grapes and apples, each week, reduced their risk of Type 2 diabetes by as much as 23 per cent compared to those who ate less than one serving per month.

"Our findings provide novel evidence suggesting certain fruits may be especially beneficial for lower diabetes risk," said Qi Sun, an assistant professor of nutrition at the Havard School of Public Health.

On the other hand, those who consumed one or more servings of fruit juice each day increased their risk of developing the disease by as much as 21 per cent.

Swapping three servings of juice per week for whole fruits resulted in a seven-per cent reduction in risk.

The paper, published by the British Medical Journal (BMJ), says further work is needed to explore this "significant" difference.

It speculates that even if the nutritional values of whole fruit and fruit juice are similar, the difference lies with the fact that one food is a semi-solid and the other a liquid.

"Fluids pass through the stomach to the intestine more rapidly than solids even if nutritional content is similar," says the paper.

"For example, fruit juices lead to more rapid and larger changes in serum [blood] levels of glucose and insulin than whole fruits."

The study also points to evidence that some kinds of fruit have a beneficial effect for health.

Berries and grapes, for instance, have compounds called anthocyanins which have been found to lower the risk of heart attacks.

But, say the authors, how or even whether this also applies to diabetes risks is for now unclear.

AFP  News

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