LipidDoc_ATL said:

The distinction that resolves most of these threads is between what is true on average and what is true for one person.

This matches mine closely enough to be worth saying so out loud. The detail I would add is minor and it is already implied above.

LipidDoc_ATL said:

The distinction that resolves most of these threads is between what is true on average and what is true for one person.

Adding the part of the answer the thread has not reached. Start from the measurement rather than the conclusion. Almost every disagreement here turns out to be two people measuring different things and comparing the numbers anyway.

If somebody has the primary source to hand I would rather cite it than paraphrase it.

Found this through search years later and it is still the best discussion of the question, so adding one thing. One practical note: write down what you did and when, before you need it. Reconstructing a timeline from memory three months later is how people end up unable to answer the one question that would have resolved it.

I would rather be corrected than agreed with, if it comes to it.

One thing that is still open after LipidDoc_ATL’s answer:

How long did you give it before you decided it was working?

MikeKY_noInsulin said:

One practical note: write down what you did and when, before you need it.

I do not accept the framing. The question has been narrowed to the version that has a tidy answer, and the part that was dropped is the part the OP actually asked about.