Medin , Anine Christine, Stine Rambekk Gulowsen, Synne Groufh-Jacobsen, Ingunn Berget, Ida Synnøve Grini, and Paula Varela. “Definitions of Ultra-Processed Foods Beyond NOVA: A Systematic Review and Evaluation”. Food & Nutrition Research 69 (June 16, 2025). Accessed April 1, 2026. https://foodandnutritionresearch.net/index.php/fnr/article/view/12217.