Half of what people describe as tolerance is a change in the underlying condition, and the two need different answers.

Ten percent cuts, of the current dose not the original. That is the arithmetic that keeps it survivable.

Reference ranges differ between labs, so comparing two reports is close to meaningless. Currently on a soup myself.

You have two changes at once here. You cannot attribute anything until one of them moves.

Most of the popular protocol is borrowed from a clinical population and applied to healthy people without comment.