After conducting focus groups to test and determine the most effect shape, color, and style for the proposed warning labels, researchers in South Africa conducted a randomized controlled trial to test the warning label alongside a traffic light label and Guideline Daily Amounts label. This experiment was led by Rina Swart as part of a Department of Health task force. UWC compiled an extensive technical report that summarized all of their research on nutrient profiling models and front-of-package labels, which they presented to the National Department of Health with their evidence-based policy recommendations.
The Department of Health released a draft front-of-package warning label regulation in April 2023, which was originally open for public comment through July 2023. This deadline was extended to September 21, 2023.