We, the undersigned groups, are writing to request that the 2020 Dietary Guidelines Advisory Committee (DGAC) continue to make full use of existing high-quality systematic reviews and meta-analyses conducted by researchers and organizations outside of the federal government, in addition to any conducted by government researchers. We strongly agree that updates to the Dietary Guidelines for Americans should reflect the latest scientific evidence; however, we believe that a determination to explicitly exclude the use of high-quality, scientifically-sound external systematic reviews and meta-analyses will reduce the efficiency and effectiveness of the DGAC process.

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