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c/bloodwork·posted 4 months ago by u/ravi_sandvik

the A1c question that gets asked weekly, answered properly

Discussion Receipts ×5

Genuinely asking, not being difficult.

Everyone in c/t2dglp1 repeats that baseline labs is important. I believe it, but I have never seen anyone show why, and when I search I get 4 threads of people agreeing with each other.

Is there a paper? Is there a measurement? Or is this one of those things that is true because it has been repeated since 2023?

I am not trying to be the "source?" guy. I would just like a source.

820 up / 236 down78% upvoted26 commentsid 2melw213 Mar 2026

26 comments

20 in this archive, depth 5

best — the order this archive was captured in

u/customs_seizure_sid107 points·4 months ago

What are your reference ranges?

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u/neha_rahimi74 points·4 months ago

Crossposting this to c/intlshipping because the people who need it are not reading this community.

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[removed]54 points·4 months ago

[removed by moderator]

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u/lina_almeida21 points·4 months ago

Disagree. What you are describing is consistent with A1c, not with what you concluded.

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u/ravi_sandvikOP9 points·4 months ago

nobody here can tell you what a result means for you

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u/jarno_karlsen-29 points·4 months ago

ferritin tanks quietly on a reduced appetite, check it

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u/a1c_arcMOD1 point·4 months ago

Flair changed to match the content. Read the sidebar before posting next time and we are square.

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u/andres_restrepo1 point·4 months ago

ALT is where the fatty-liver story shows up first

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u/vito_chowdhury27 points·4 months ago

What are your reference ranges?

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u/ravi_sandvikOP20 points·4 months ago

eGFR noise during rapid loss is expected

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u/emil_agyeman13 points·4 months ago

That is net peptide content, not purity. Different number, different meaning.

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u/nabila_bakken18 points·4 months ago

Same lab both times?

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u/constipation_clubside effects5 points·4 months ago·edited

post reference ranges with your numbers, units differ by country and lab

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u/anya_rautio12 points·4 months ago

Same lab both times?

Adding to this: ApoB is doing more work than the comment implies.

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u/bence_zamora6 points·4 months ago

Slight fix: the number was 97.4, not 97.2. Decimal point, but a fairly consequential one.

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u/thermal_mass_tom1 point·4 months ago

ApoB over LDL-C, that is the hierarchy

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About c/bloodwork

What to measure before you start, what to re-measure, and how to interpret movement without panicking. ApoB over LDL-C, HOMA-IR as a crude free tool, ALT and the fatty-liver story, eGFR noise during rapid loss, and the deficiencies that a 1,100-calorie appetite will hand you.

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