Letters

Europe in transition: Dietary fat is not the villain

BMJ 2005; 331 doi: https://doi.org/10.1136/bmj.331.7521.906-b (Published 13 October 2005) Cite this as: BMJ 2005;331:906
  1. Uffe Ravnskov ([email protected]), independent researcher
  1. Magle Stora Kyrkogata 9, 22350 Lund, Sweden

    EDITOR—Zatonski and Willett claim that a decrease of saturated fat and an increase of polyunsaturated fat consumption explain the decrease of coronary heart disease in Poland.1 However, ecological data are prone to bias because they are rarely, if ever, adjusted for confounders. In this case they are even contradicted by similar studies in the past. In a review including 103 …

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