Does the type and frequency of dietary advice provide a treatment for adults with type 2 diabetes?

From: The Cochrane Collaboration

Journal rating:
rating: 98%
Study Quality:
rating: 100%

Overall Reliability

Article Quality:
rating: 75%
rating: 50%


  • 36 articles reporting a total of eighteen trials following 1,467 participants.


  • Dietary approaches assessed in the review were low-fat/high-carbohydrate diets, high-fat/low-carbohydrate diets, low-calorie (1000 kcal per day) and very-low-calorie (500 kcal per day) diets and modified fat diets.
  • Two trials compared the American Diabetes Association exchange diet with a standard reduced fat diet and five studies assessed low-fat diets versus moderate fat or low-carbohydrate diets.
  • Two studies assessed the effect of a very-low-calorie diet versus a low-calorie diet.
  • Six studies compared dietary advice with dietary advice plus exercise and three other studies assessed dietary advice versus dietary advice plus behavioural approaches.
  • The studies all measured weight and measures of glycaemic control although not all studies reported these in the articles published.


  • It is difficult to draw reliable conclusions from the limited data that are presented in this review, however, the addition of exercise to dietary advice showed improvement of metabolic control after six- and twelve-month follow-up.


  • undecided