Understanding Food Labels - Norfolk and Norwich University Hospitals ... Nutrition Information on labels may be shown in a traffic light system. This shows if a food has high (red), medium (amber) or low (green) amounts of ... Guideline Daily Amount (GDA) per serving for each of these items. Healthy Eating - Understanding Food Labels Trust Docs ID: 11128 Reviewed by Community Dietitians 18/10/2019 To be Reviewed ...