I wish I had made more effort to record the changes when I started my big weight loss effort. It is such a useful record to have when you run into problems or you need to remind yourself just how far you have come. If I could go back to day 1, I would do the following monthly…
Take photos - front, back and side body shots plus face. Try and stand in the same way and wear reasonably tight clothes so you can really appreciate the changes.
Measurements - waist and hips at least but everywhere else is useful too, especially if there are areas that particularly bug you!
Weight - well most people do this. If you obsess about weight too easily then ditch the scales and get weighed elsewhere (same scales, same time of day, similar clothes). I like recording every day but I don’t freak out if it goes up and down - that’s normal.
Blood tests - improvements to your health are the best reason for doing keto so it is great to be able to see those health markers improve. It really depends what your issues are but I would go for a minimum of HDL/LDL/Trigs and HbA1c. Check out the Tests section under the Health category for more info.
Journal - make a note of how you are feeling in a journal. This could be in a notebook, on your phone or an online journal. Take some time each week to assess how things are going. What changes are you noticing? If anything is amiss note down what was happening that week - maybe you were getting less sleep, were stressed out about something or have struggled with food for some reason. It is so useful to be able to look back and see what was going on if, for example, you are experiencing a stall. There could be an obvious reason that you could address and solve the problem. I used to get bad migraines so kept a note of when I got them and what I had been eating /doing that day.