The FAO/INFOODS e-Learning Course on Food Composition Data will contribute to close the knowledge gap on food composition of nutritionists and all those generating, compiling or using food composition data. The course aims at making learners aware of all important issues; nevertheless the course cannot provide the necessary experience to become a full-fledged food composition expert. This will only come with experience and when actually working with food composition data. However, if most nutritionists and professionals working with food composition data acquired the knowledge of this course, it would make a great difference in data quality, availability and use.