Log dose, time and sleep. Ten seconds a day and it turns the anecdote into something you can look at.

Same here.

Sleep, food, or the compound? Yes.

What is the first thing you would read if you were starting from zero?

Stupid question: how do you know whether what is in the vial matches the label at all? How long have you been on electrolyte powder?

Baseline first.

Is a baseline blood test really necessary before starting something like this?

Underdosing and tolerance are indistinguishable from the inside, and everyone picks the flattering explanation.

This is the kind of post the forum exists for. Eight months in on electrolyte powder and it lines up.

How long before you can reasonably say something is or is not doing anything?

Same here.

Is a baseline blood test really necessary before starting something like this?

Test one thing at a time. It feels slower and it is the only way to learn anything.

Read methods.