Low glycemic diet does not improve risk factors

24 December 2014

A team at Brigham and Women's Hospital (BWH) in Boston and Johns Hopkins University (JHU) has found that a low glycemic diet has no significant impact on a patient's risk of developing cardiovascular disease (CVD) or diabetes.

Experts commonly dispute the nutritional value of carbohydrate-containing foods, with them being classified by how much they increase blood sugar - the glycemic index. The new study found that low glycemic diets did not improve insulin sensitivity or cardiovascular risk factors. 

Published in the Journal of the American Medical Association (JAMA), the research focused on a randomised, controlled trial involving 163 overweight adults with elevated blood pressure. Each participant was given one of four complete diets that contained all of their meals, snacks and beverages, each for five weeks. 

The diets used were a variation of a healthful dietary pattern as recommended by national dietary guidelines.

Future studies are needed to determine whether low glycemic index diets can help people with type 2 diabetes or who need long-term weight loss, the researchers state, as previous research has been inconsistent.

Posted by Philip Briggs 

 

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