Insulin sensitivity vs insulin secretion — my results so far

NurseKim_ATL said:

Fasting insulin is the lab my functional medicine doctor cares about most for glycaemic control: it's a much earlier marker of metabolic dysfunction…

That is right for the common case. Whether it is right for the case being asked about depends on a detail that has not been given.

fiona_VT said:

Patient selection optimization for glycaemic control: emerging predictive biomarkers for GLP-1 agonist response include: Biomarker Association…

This answered a question I did not know how to ask.

NurseKim_ATL said:

Fasting insulin is the lab my functional medicine doctor cares about most for glycaemic control: it's a much earlier marker of metabolic dysfunction…

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.

The figures, for anyone assembling their own picture. Practical: whatever you change, write down the date and the reason. In three months the reason is what you will have forgotten, and the reason is what makes the record worth having.

Moderator note: good thread. Keeping it here rather than moving it, because the question is general enough to be useful. Carry on.