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c/t2dglp1·posted 10 months ago by u/stablecoin_steve

three years of metformin threads, summarised so you do not have to read them

Discussion

The title is the argument: three years of metformin threads, summarised so you do not have to read them. Here is the rest of it.

Variability dropped before the average did, which was visible on the sensor and invisible on the lab result.

Assumed the weight endpoints from the obesity trials applied to my situation. They are different programmes.

Brought the whole CGM export to my appointment rather than one number. Entirely different conversation.

Not medical advice, obviously, and nothing here is approved for human use. One person with a spreadsheet.

722 up / 806 down47% upvoted16 commentsid y29txz30 Sep 2025

16 comments

16 in this archive, depth 4

best — the order this archive was captured in

u/a1c_arcMOD9 points·10 months ago

Retitled — the original quoted an obesity endpoint as a glycaemic one.

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u/gentle_correctionnice about it6 points·10 months ago

Have you taken this to whoever manages your diabetes?

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u/karim_ramos2 points·10 months ago

Sensor accuracy varies across wear, and readings on the first day are the least reliable. Calibration practice and compression artefacts explain many alarming single values.

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u/priya_weiss4 points·10 months ago

Kept fingersticks alongside the sensor for two weeks to sanity-check it. Worth doing once.

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u/zaid_dahlberg6 points·10 months ago

Push back: one sensor reading is not a data point worth acting on, especially in the first day of wear.

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u/ingrid_correia2 points·10 months ago

Is that a first-day sensor reading?

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u/rui_only_ro6 points·10 months ago

On hypoglycaemia, because the risk gets attributed to the wrong thing constantly.

Incretin-based agents stimulate insulin secretion in a glucose-dependent way: the effect scales with glycaemia rather than acting unconditionally. That is why monotherapy risk is low. Where risk rises substantially is in combination with agents that lower glucose independently of the current level.

Which means the question "does this cause hypos" is not answerable without knowing the rest of the regimen — and that the person who can answer it is the one who wrote the regimen. Nothing on this board is a substitute for that conversation, and the good threads here end by saying so.

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u/stablecoin_steveOP-17 points·10 months ago

How long between the two A1c measurements?

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u/stablecoin_steveOP1 point·10 months ago·edited

Correcting myself: 23 weeks between those two A1c results, which is too short an interval to interpret.

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u/teodor_duarte3 points·10 months ago

Incretin-based agents stimulate insulin secretion in a glucose-dependent manner, which is why hypoglycaemia risk with them alone is low. Risk rises with agents that act independently of glycaemia.

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u/tomas_lundgren1 point·10 months ago·edited

I would not compare your numbers to that population. Different baseline, different regimen, different trial.

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[deleted]1 point·10 months ago

[deleted]

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u/appeal_letter_al1 point·10 months ago

variability matters as much as the mean

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u/stablecoin_steveOP1 point·10 months ago

Time in range told me far more than the average did. Two quarters with the same A1c looked completely different on the sensor.

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u/baseline_drifteranalytical1 point·10 months ago

Incretin-based agents stimulate insulin secretion in a glucose-dependent manner, which is why hypoglycaemia risk with them alone is low.

Disagreeing with this line: that endpoint is from the obesity programme and does not answer the question.

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u/stablecoin_steve2 points·10 months ago

Panicked over a first-day sensor reading and rebuilt my week around it. It was the sensor.

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Type 2 diabetes as the original indication: A1c trajectories, CGM traces, hypoglycaemia risk when stacked with sulfonylureas or insulin, metformin combinations, and why the weight-loss conversation sometimes drowns out the glycaemic one.

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