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7DDs form the primary dietary record used in EPIC-Norfolk. They are issued as A5, 45-page booklets. Participants record everything that they have eaten for seven days (preferably 7 consecutive days covering weekdays and weekend days) with particular attention to amounts and how foods are prepared. The pages for each day have eight sections, seven meal slots for recording food and drinks taken from before breakfast to last thing and even during the night, and a checklist and section for recording additional snacks and other information.
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Click here to see a page from a 7DD |
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The front pages of the 7DD include suggestions for describing and quantifying food and drinks consumed. Participants are encouraged to include full information including how foods are cooked, the type of fat or oil used in preparation or frying, brand names of commercial products and details of recipes used. The amount an individual consumes of each food item or beverage is crucial information and detailed information is also available on how different foods may be usefully quantified. For example:
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