E.g. it would be nice to compare different data - eaten fat/sugar vs. weight. Maybe for the first try some default-comparisons, later let the user select what to compare?
See here - first pic:
For the later development it would be nice to have different scales on the y-axis (because of different ranges of the source-data), x-axis stays the same - e.g. one data-point for each day. There might be some interesting findings in all the collected data.
