 The aim of this study was to validate the rix-maton method which is a novel self-assisted web-based four-day food record for measuring dietary fat intake in a healthy adult population. The results showed that total N3 fatty acids, EPA and DHA, linoleic acid, and dairy product intake were significantly correlated with plasma biomarkers of fatty acid composition. This suggests that the rix-maton method can accurately measure dietary fat intake in a healthy adult population. This article was authored by Eva Wuransu-Lemming, Cecilia Nelson, Wolf Becker, and others.