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Foods identified as 'whole grain' not always healthy
Date:1/10/2013

Boston, MA Current standards for classifying foods as "whole grain" are inconsistent and, in some cases, misleading, according to a new study by Harvard School of Public Health (HSPH) researchers. One of the most widely used industry standards, the Whole Grain Stamp, actually identified grain products that were higher in both sugars and calories than products without the Stamp. The researchers urge adoption of a consistent, evidence-based standard for labeling whole grain foods to help consumers and organizations make healthy choices. This is the first study to empirically evaluate the healthfulness of whole grain foods based on five commonly used industry and government definitions.

"Given the significant prevalence of refined grains, starches, and sugars in modern diets, identifying a unified criterion to identify higher quality carbohydrates is a key priority in public health," said first author Rebecca Mozaffarian, project manager in the Department of Social and Behavioral Sciences at HSPH.

The study appears in the January 4, 2013 advanced online edition of Public Health Nutrition.

The health benefits of switching from refined to whole grain foods are well established, including lower risk of cardiovascular disease, weight gain, and type 2 diabetes. Based on this evidence, the U.S. Department of Agriculture's (USDA) 2010 Dietary Guidelines recommend that Americans consume at least three servings of whole grain products daily, and the new U.S. national school lunch standards require that at least half of all grains be whole grain-rich. However, no single standard exists for defining any product as a "whole grain."

Mozaffarian and her colleagues assessed five different industry and government guidelines for whole grain products:

  • The Whole Grain Stamp, a packaging symbol for products containing at least 8 grams of whole grains per serving (created by the Whole Grain Council, a non-governmental org
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Contact: Marge Dwyer
mhdwyer@hsph.harvard.edu
617-432-8416
Harvard School of Public Health
Source:Eurekalert

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