Dietary PUFAs intake through 4-day food records
All included subjects were asked to report their daily food intake by using 4-day food records that were provided at the screening visit of ENHANce. Subjects were instructed to complete four food records on non-consecutive days – including three weekdays and one weekend day – spread over a period of 2 weeks. Participants were asked not to adapt their usual diet and to register the specific food items and portions as accurately as possible (in grams or household measures). In order to avoid missing data and to optimize quality, food records were reviewed together with the participant upon submission. Subsequently, food records were examined in detail by a member of the research team using the nutrients described from the Belgian Food Composition Database (FCDB) NUBEL [