The main purpose of a nutritional analysis is to inform you of the actual nutritional intake as compared to your need (or want) values. In the Analysis screen, the green line tells you what your preset goal for a nutrient is (DV). This bar can be used to compare with the blue period-bar to let inform how close you are for that period (or day), or with the red line (average of entire range) to see how well you have done for that range of days. Once known, appropriate adjustment can be made.
