Usability Evaluation of Nutrition Fact Label

The nutritional fact label (NFL) is the medium used to communicate nutritional information that help people having a balance-dietary, while there were evidences claimed that current format of NFL had an interface issues. Thus, the purpose of this study was to evaluate usability of nutrition fact label concerning people's health literacy. This study conducted a quantitative usability testing together with an in-depth interview in order to understand how people accessed the nutrition information in current design. Forty participants with 10 people that are high health literacy and 30 people that are low health literacy participated in the usability testing. The individual differences of health literacy were found and the major interface issues were illustrated and discussed.