Details:

Alternative Title:
Prev Chronic Dis
Publisher's site:
http://dx.doi.org/10.5888/pcd12.150237
Personal Author:
Freudenberg, Nicholas ; Franzosa, Emily ; Sohler, Nancy ; Li, Rui ; Devlin, Heather ; ... More +
Freudenberg, Nicholas ; Franzosa, Emily ; Sohler, Nancy ; Li, Rui ; Devlin, Heather ; Albu, Jeanine Less -
Description:
Introduction

Improvements in diet can prevent obesity and type 2 diabetes. Although policy changes provide a foundation for improvement at the population level, evidence for the effectiveness of such changes is slim. This study summarizes the literature on recent efforts in the United States to change food-related policies to prevent obesity and diabetes among adults.

Methods

We conducted a systematic review of evidence of the impact of food policies. Websites of government, academic, and nonprofit organizations were scanned to generate a typology of food-related policies, which we classified into 18 categories. A key-word search and a search of policy reports identified empirical evaluation studies of these categories. Analyses were limited to strategies with 10 or more reports. Of 422 articles identified, 94 met these criteria. Using publication date, study design, study quality, and dietary outcomes assessed, we evaluated the strength of evidence for each strategy in 3 assessment categories: time period, quality, and study design.

Results

Five strategies yielded 10 or more reports. Only 2 of the 5 strategies, menu labeling and taxes on unhealthy foods, had 50% or more studies with positive findings in at least 2 of 3 assessment categories. Most studies used methods that were rated medium quality. Although the number of published studies increased over 11 years, study quality did not show any clear trend nor did it vary by strategy.

Conclusion

Researchers and policy makers can improve the quality and rigor of policy evaluations to synthesize existing evidence and develop better methods for gleaning policy guidance from the ample but imperfect data available.


Subject:
[+]
Adult Diabetes Mellitus, Type 2 Diet Empirical Research Evaluation Studies As Topic Health Promotion Humans Nutrition Policy Obesity Systematic Review
Source:
Prev Chronic Dis. 12.
Pubmed ID:
26513438
Pubmed Central ID:
PMC4651114
Document Type:
Journal Article
Place as Subject:
United States
Collection(s):
Preventing Chronic Disease
Main Document Checksum:
[+]
urn:sha256:f756a86ac9430dfb99fd0585984ebfdb58bdd2a25bfda214b0c75292d720b1fa
Download URL:
https://stacks.cdc.gov/view/cdc/36133/cdc_36133_DS1.pdf
File Type:

Supporting Files

• 	15_0237_AppendixA.docx	docx
  	15_0237_AppendixB.docx	docx
  	15_0237_AppendixC.docx	docx
  	license.txt	txt
  	PCD-12-E182.nxml	bin

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