Apparently there are people who keep far more data about themselves than me and use far more elaborate methods of analysis
Here’s a guy (and his code, fully released on GitHub) analysing his daily data (weight, food, sleep) using machine learning methods. The process obviously takes some effort but eventually stuff like this will all be commoditised and in use by millions.
Discovering ketosis: how to effectively lose weight
Relate H/N discsussion https://news.ycombinator.com/item?id=12279415