Vitapro.fit is all about your nutrient intake statistics. It helps you keep records of how much of vitamin A, D, C, etc or Selenium or Glutamic Acid or anything else you have had at your breakfast or today, or during a given week, month, any period of time when you've been using the website. It also keeps records whether it was enough or not considering you nutrient intake requirements. It shows what your cumulative deficit or surplus was for today, for a week, for a month, for all time. These statistics also serve as a base allowing you to better understand some health issues or dynamics you might have been experiencing.
There are two types of statistics at vitapro.fit. The first one is statistics for a given day. It is more like a chart and available on My Day page. For anonymous users, the website provides these statistics only on a present-day basis while registered users can review any day they had their food diary records, using a datepicker. The second type of statistics is more like a summary table for a given period of time. It is available only for registered users, on My Stats page. There, you can select the period and a component (or all components at once) to examine. If you are interested in doing your own analysis, you can download the raw data for a given period in the form of a .csv file by pressing the button "Export source data". Also, with the help of a datepicker, you can review the days this summary is based on.
When it comes to these summary statistics, things are pretty straightforward and self-explanatory. Nevertheless, one thing needs to be clarified. If you switched from typical to personalized nutrient requirements or vice versa, you may notice while examining your My Stats or My insights pages that your intake, requirements and the difference between these two values don't always add up for some components. Moreover, the deviation could be significant indicating that the issue has nothing to do with rounding. Such situations happen because the calculation of your average requirements for a given period takes into account only the days when your requirements for a given component were set, which is not always the case if a user switches from typical to personalized requirements or vice versa. Consequently, the calculation of the average difference between your intake and your requirements can take into account only the days when your requirements were set. BUT the calculation of your average intake takes in to account ALL days when you had your food diary records no matter whether your requirements were set on those days or not. In other words, the content of "±/" columns in your statistical tables and values of "difference" datapoints in your correlation plots represent your average nutrient intake balance on those days when your requirements for a given component were set. All of the above may results in the described discrepancies. If you are OK with your automatically set, metrics-based requirements, the issues should not affect you.
For those who want to know how exactly your average nutrient intake balance is calculated, here is the detailed explanation: