I see. That's quite easier to do when you have a website set up in order to do all of the tracking, in comparison to relying on an Excel spreadsheet, which is best updated on a PC. Your set up makes me wonder what I could do to replicate something like this using a VPS and a subdomain on a domain I have, actually.

As for water consumption, I suppose it'd be a lot more rewarding to implement it into your current workflow for entering all of the data. In my case, I could look into using Apple's Shortcuts to let me have a button that I can press to quickly add data to the Health app, especially since I usually drink water in 500ml increments. I could always have the shortcut ask me as well - but then the whole process would become significantly slower.