To avoid developing type 2 diabetes, you may have been told
to watch your calories and kick up your activity level. Now researchers say
there's something else you might consider: your so-called dietary acid load.
A diet heavy in animal products and other acidic foods can
cause an acid load in the body, resulting in health complications. This
includes reduced insulin sensitivity, which can lead to type 2 diabetes,
according to the new study.
"We have demonstrated for the first time in a large
prospective study that dietary acid load was positively associated with type 2
diabetes risk, independently of other known risk factors for diabetes,"
the researchers said. "Our results need to be validated in other
populations, and may lead to promotion of diets with a low acid load for the
prevention of diabetes."
The term animal products refer to meat, eggs and dairy.
Greater consumption of fruits and vegetables is believed to lead to a lower
acid load, the researchers said.
The study included more than 66 000 women in Europe who
were followed for more than 14 years. During that time, nearly 1 400 of the
women were diagnosed with type 2 diabetes.
Those with diets highest in acidic foods were 56% more
likely to develop diabetes than those with diets lowest in acidic foods,
according to the study, which was published recently in the journal Diabetologia.
This link between a highly acidic diet and increased risk
of diabetes remained even after the researchers adjusted for dietary patterns,
meat consumption and intake of fruit, vegetables, coffee and sweetened beverages.
The study did not, however, prove that a highly acidic diet
actually causes diabetes.
"A diet rich in animal protein may favour net acid
intake, while most fruits and vegetables form alkaline precursors that neutralise
the acidity," wrote Dr Guy Fagherazzi and Dr Francoise Clavel-Chapelon, of
the Centre for Research in Epidemiology and Population Health at INSERM, in
what is generally believed, most fruits such as peaches, apples, pears, bananas
and even lemons and oranges actually reduce dietary acid load once the body has
INSERM is the French equivalent of the US National
Institutes of Health.
The US Office of Disease Prevention and Health Promotion
outlines ways to prevent type 2 diabetes.
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