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THURSDAY, Jan. 15, 2015 (HealthDay News) -- Healthy eating habits reduce women's risk of type 2 diabetes, new research finds.
"This study suggests that a healthy overall diet can play a vital role in preventing type 2 diabetes, particularly in minority women who have elevated risks of the disease," said lead author Jinnie Rhee, a postdoctoral fellow in the division of nephrology at Stanford University School of Medicine.
The researchers analyzed data from thousands of white, black, Hispanic and Asian women in the United States who provided information about their eating habits every four years and were followed for up to 28 years.
A healthy diet featured lower intake of saturated and trans fats, sugar-sweetened drinks, and red and processed meats. It included higher intake of cereal fiber, polyunsaturated fats, coffee and nuts.
Polyunsaturated fats include soybean, safflower, canola and corn oils, according to the U.S. Centers for Disease Control and Prevention. Rich cheeses, butter, whole milk, ice cream and palm and coconut oils are harmful saturated fats.
Healthy eating reduced the risk of diabetes by 55 percent in Hispanic women, 48 percent in white women, 42 percent in Asian women and 32 percent in black women, according to the study published online Jan. 15 in the journal Diabetes Care.
When all the minority women were combined into a single group, those with the healthiest diets had a 36 percent lower risk of diabetes than those with the poorest diets, the researchers found.
They noted that minority women are at greater risk for diabetes than white women. In terms of actual numbers, a healthier diet offered greater protection for minority women, they found.
For every 1,000 women, they said, healthier eating habits can prevent diabetes in eight minority women per year, compared with five white women.
"As the incidence of type 2 diabetes continues to increase at an alarming rate worldwide, these findings can have global importance for what may be the largest public health threat of this century," Rhee said in a Harvard School of Public Health news release.
Rhee conducted the research while a doctoral student in the epidemiology and nutrition departments at Harvard.
About 29 million people in the United States and 47 million people worldwide have diabetes, the researchers noted. The disease could be the seventh leading cause of death by 2030, according to the World Health Organization.
-- Robert Preidt
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SOURCE: Harvard School of Public Health, news release, Jan. 15, 2015