Improving the scientific rigour of nutritional recommendations for adults with type 2 diabetes: A comprehensive review of the American Diabetes Association guideline-recommended eating patterns.

Publisher: Wiley-Blackwell Country of Publication: England NLM ID: 100883645 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1463-1326 (Electronic) Linking ISSN: 14628902 NLM ISO Abbreviation: Diabetes Obes Metab Subsets: MEDLINE

Original Publication: Oxford : Wiley-Blackwell, c1999-

Nutrition Policy* ; Practice Guidelines as Topic*; Diabetes Mellitus, Type 2/*diet therapy ; Diet, Diabetic/*standards; Adult ; Clinical Trials as Topic ; Feeding Behavior ; Female ; Humans ; Male ; Meta-Analysis as Topic ; Systematic Reviews as Topic ; United States

Aims: The global rate of type 2 diabetes (T2D) continues to rise. Guidelines that influence the worldwide treatment of this disease are central to changing this trajectory. We sought in this review to evaluate the appropriateness of sources cited in the American Diabetes Association's (ADA) guidelines on eating patterns for T2D management, identify additional relevant sources, and evaluate the evidence.
Materials and Methods: We reviewed the evidence behind the ADA's recommendations on eating patterns in the 2018 and 2019 ADA Standards of Care and the 2014 ADA Nutrition Therapy Recommendations for Adults with Diabetes. Additionally, we conducted a comprehensive search to identify any additional studies not included in the cited evidence. To determine appropriateness of inclusion in the guidelines, the following criteria were applied: 1) it was a clinical trial or systematic review/meta-analysis of clinical trials; 2) it involved persons with T2D; 3) one of the study arms followed one of the eating patterns currently recommended; 4) its reported outcomes included glycaemic control; 5) outcomes were reported separately for persons with T2D.
Results: We found a wide variation in the evidence for each eating pattern. Issues that have hampered the guideline process include: lack of a rigorous literature review, resulting in the omission of pertinent studies; an overreliance on prospective cohort studies; inconsistent standards for evidence; inclusion of studies not on persons with T2D; and bias.
Conclusions: The ADA Guidelines recommended eating patterns fall short of rigorous standards of scientific review according to state-of-the-art systematic review and guideline creation practices.
(© 2019 The Authors. Diabetes, Obesity and Metabolism published by John Wiley & Sons Ltd.)

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Keywords: DASH; Mediterranean; eating patterns; low-carbohydrate; plant-based; type 2 diabetes

Date Created: 20190404 Date Completed: 20200916 Latest Revision: 20210109

20240628

PMC6767093

10.1111/dom.13736

30941880