Developing an Evidence Review Cycle Model for Canadian Dietary Guidance

Colapinto, Cynthia K; Ellis, Ann Marie; Faloon-Drew, Katie; Lowell, Hélène

doi:10.1016/j.jneb.2015.08.018

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…They were the 2020 Guide, 19 Health Canada’s review process document, 16 an interim update on the evidence base, 18 and a peer-reviewed journal article published in Journal of Nutrition Education and Behaviour that outlined the 2020 Guide’s creation process. 56 …”

Section: Methodsmentioning

confidence: 99%

Governing evidence use in the nutrition policy process: evidence and lessons from the 2020 Canada food guide

Weldon

Parkhurst

2022

Nutrition Reviews

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Nutrition guideline development is traditionally seen as a mechanism by which evidence is used to inform policy decisions. However, applying evidence in policy is a decidedly complex and politically embedded process, with no single universally agreed-upon body of evidence on which to base decisions, and multiple social concerns to address. Rather than simply calling for “evidence-based policy,” an alternative is to look at the governing features of the evidence use system and reflect on what constitutes improved evidence use from a range of explicitly identified normative concerns. This study evaluated the use of evidence within the Canada Food Guide policy process by applying concepts of the “good governance of evidence” – an approach that incorporates multiple normative principles of scientific and democratic best practice to consider the structure and functioning of evidence advisory systems. The findings indicated that institutionalizing a process for evidence use grounded in democratic and scientific principles can improve evidence use in nutrition policy making.

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Section: Methodsmentioning

confidence: 99%

Governing evidence use in the nutrition policy process: evidence and lessons from the 2020 Canada food guide

Weldon

Parkhurst

2022

Nutrition Reviews

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“…For example, to inform Canada's Dietary Guidelines (published in 2019), an Evidence Review Cycle model was created (23,24) . The purpose of this model was to make the process of identifying relevant sources of evidence, including existing systematic reviews, more systematic and transparent (23,25) . With continuous use, the model is intended to enable identification of new evidence that can be used to inform future iterations of the guidelines (23) .…”

Section: Use Of Systematic Reviews In Dietary Guideline Developmentmentioning

confidence: 99%

Dietary patterns, foods and nutrients: a descriptive analysis of the systematic reviews conducted to inform the Australian Dietary Guidelines

2020

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Dietary guidelines should be underpinned by the best available evidence on relationships between diet and health, including evidence from nutrient-based, food-based, and dietary patterns research. The primary aim of this study was to analyse the systematic reviews conducted to inform the 2013 Australian Dietary Guidelines according to dietary exposure. The secondary aim was to analyse the reviews by health outcome, and design of included studies. To identify the systematic reviews, the dietary guidelines report was used as a starting point and relevant references were retrieved. The evidence report contained the data used in this analysis. Descriptive statistics were used to analyse reviews according to exposure, outcome, and design of included studies. A total of 143 systematic reviews were included in this analysis. Foods were the most common exposure (86.7% of reviews), followed by nutrients (10.5%), and dietary patterns (2.8%). Chronic disease morbidity and/or mortality was the most common outcome (80.4%), followed by chronic disease risk factors (19.6%). Most reviews included evidence from cohort or nested case control studies (92.3%), many included evidence from case control studies (61.5%), and some included evidence from randomised controlled trials (RCTs) (28.7%). These results reflect the research questions that were asked, the systematic review methods that were used, and the evidence that was available. In developing future iterations of the Australian Dietary Guidelines, there is an opportunity to review the latest evidence from dietary patterns research.

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“…Unlike in the United States, the periodic review of research evidence and revision of dietary guidelines are not legislated in most other countries (30). For example, Canada's national dietary guidelines, Eating Well with Canada's Food Guide, are updated only if there is an identified need to revise guidelines (23,40). In almost all countries, recommendations are formulated through a consensus process led by working groups or committees after a review of the evidence, which is completed with variable rigor (16).…”

Section: How Do Governments and Organizations Develop Dietary Guideli...mentioning

confidence: 99%

Evidence Collection and Evaluation for the Development of Dietary Guidelines and Public Policy on Nutrition

2019

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Dietary guidelines and recommendations, usually developed by government bodies or large authoritative organizations, have major downstream effects on public policy. A growing body of evidence supports the notion that there are serious deficiencies in the methods used to develop dietary guidelines. Such deficiencies include the failure to access or conduct comprehensive systematic reviews, a lack of systematic or rigorous evaluation of the quality of the evidence, a failure to acknowledge the limitations of the evidence base underlying recommendations, and insufficiently stringent management of conflicts of interest. These issues may be addressed by adhering to international standards for guideline development, including adopting systematic review methodology and using rigorous systems to evaluate the certainty of the evidence and to move from evidence to recommendations, of which the GRADE approach (Grading of Recommendations Assessment,Development and Evaluation) is the most rigorous and fully developed. Improving the methods by which dietary guidelines are produced has considerable potential to substantially improve public policy decision-making.

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Developing an Evidence Review Cycle Model for Canadian Dietary Guidance

Cited by 5 publications

References 11 publications

Governing evidence use in the nutrition policy process: evidence and lessons from the 2020 Canada food guide

Governing evidence use in the nutrition policy process: evidence and lessons from the 2020 Canada food guide

Dietary patterns, foods and nutrients: a descriptive analysis of the systematic reviews conducted to inform the Australian Dietary Guidelines

Evidence Collection and Evaluation for the Development of Dietary Guidelines and Public Policy on Nutrition

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