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The Science is not settled

The science behind the Dietary Guidelines: is it sound?

For the 2015 Dietary Guidelines, there was an unprecedented level of concern.  Read more here…

Before 2015, there was also significant concern about previous Dietary Guidelines for Americans: read more here…

A look at the disputed science on:

There are questions about the reliability of the consumption data (NHANES) upon which the Guidelines’ assumptions are based. read more here…

The 2015 expert report for the Dietary Guidelines portrays a high degree of certainty about the state of knowledge regarding nutrition and disease. It says,“The evidence base has never been stronger to guide solutions” (Italics added)(Part B, Ch 2, p. 5, lines 159-160). However, on many key issues (see above), there is substantial debate among scientists about the state of the evidence.
The degree of certainty portrayed in the Guidelines is due in large part to a decision, by the 1995 Dietary Guidelines Advisory Committee, to simplify language for non-scientific readers. Thus, the committee opted to remove qualifying words, such as “the probably’s, whereas’s, could’s and might’s,” [sic] in order to make the messages “clear and unambiguous.”  This level of confidence did not accurately reflect the state of the evidence yet continues to characterize the Guidelines.