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Eating blueberries may lower
diabetes risk
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Eating more whole fruits, particularly
blueberries, grapes and apples is significantly associated with a lower risk
of type 2 diabetes, according to a new study.
However, greater consumption of fruit juices is
associated with a higher risk of type 2 diabetes, researchers led by Harvard
School of Public Health (HSPH) found.
"While fruits are recommended as a measure for
diabetes prevention, previous studies have found mixed results for total fruit
consumption," said senior author Qi Sun, assistant professor in the Department
of Nutrition at HSPH and assistant professor at the Channing Division of Network
Medicine, Brigham and Women's Hospital.
"Our findings provide novel evidence suggesting
that certain fruits may be especially beneficial for lowering diabetes risk,"
Sun said.
The researchers examined data gathered between
1984 and 2008 from 187,382 participants in three long-running studies (Nurses'
Health Study, Nurses' Health Study II, and Health Professionals Follow-up
Study).
Participants who reported a diagnosis of
diabetes, cardiovascular disease, or cancer at enrollment were excluded. Results
showed that 12,198 participants (6.5 per cent) developed diabetes during the
study period.
The researchers looked at overall fruit
consumption, as well as consumption of individual fruits: grapes or raisins;
peaches, plums, or apricots; prunes; bananas; cantaloupe; apples or pears;
oranges; grapefruit; strawberries; and blueberries. They also looked at
consumption of apple, orange, grapefruit, and "other" fruit juices.
People who ate at least two servings each week
of certain whole fruits - particularly blueberries, grapes, and apples - reduced
their risk for type 2 diabetes by as much as 23 per cent in comparison to those
who ate less than one serving per month.
Conversely, those who consumed one or more
servings of fruit juice each day increased their risk of developing type 2
diabetes by as much as 21 per cent.
The researchers found that swapping three
servings of juice per week for whole fruits would result in a 7 per cent
reduction in diabetes risk.
Courtesy:
Indian Express
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