Letters Fat and oil consumption

Authors’ reply to Winkler and Ravnskov

BMJ 2014; 348 doi: https://doi.org/10.1136/bmj.g3206 (Published 14 May 2014) Cite this as: BMJ 2014;348:g3206
  1. Renata Micha, research director/associate1,
  2. Dariush Mozaffarian, associate professor1
  1. 1Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115, USA
  1. dmozaffa{at}hsph.harvard.edu

We agree with Winkler that the interpretation of dietary data requires appropriate perspective, context, and recognition of strengths and limitations, as is true for any scientific research.1 2 But Winkler’s concerns reflect only a partial understanding of the strengths and limitations of various nutritional assessment methods.

The interpretation and validity of individual level dietary data depend on the dietary assessment tool used (such as diet records, diet recalls, semi-quantitative food frequency questionnaires, tissue biomarkers) as well as the level of …

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