Henriksen , Hege Berg, Hedda Beate Berg, Lene Frost Andersen, Harald Weedon-Fekjær, and Rune Blomhoff. “Development of the Norwegian Diet Index and the Norwegian Lifestyle Index and Evaluation in a National Survey”. Food & Nutrition Research 67 (September 29, 2023). Accessed March 31, 2026. https://foodandnutritionresearch.net/index.php/fnr/article/view/9217.