 This study investigated the effects of a portion design plate with food group portion guidelines on the eating habits of hospital staff members in Singapore. The results showed that the proportion of vegetables consumed increased significantly over time, while the proportion of carbohydrates decreased. Additionally, participants reported being more satisfied with the portion design plate than with a regular plate without portion guidelines. This suggests that the portion design plate may be effective in encouraging healthier eating habits among hospital staff. This article was authored by Dirk Efter Korn, Rahul Malhotra, Waheelim and others.