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

bloodwork — my 15-week log, condensed into one table

Discussion Clean Column ×2 Sourced ×1

Long-ish post, sorry. tl;dr at the bottom.

I have been tracking bloodwork against eGFR for 31 weeks because I could not find anyone who had. The correlation is weaker than I expected, which is itself mildly interesting given how confidently people link the two in here.

Caveats up front: one person, one lab, one assay, no control, and I changed my training in the middle of it, which was stupid.

tl;dr: probably real, definitely smaller than the threads imply, and not worth reorganising your week around.

3,248 up / 1,195 down73% upvoted39 commentsid 22fei428 Mar 2026

39 comments

22 in this archive, depth 4

best — the order this archive was captured in

u/liver_enzyme_lizMOD398 points·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/kofi_balogun554 points·4 months ago

Same lab both times?

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[removed]409 points·4 months ago

[removed by moderator]

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u/lipid_panel_larrybloodwork131 points·4 months ago

You have restated the marketing copy. What is the actual substance here.

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u/andres_restrepo99 points·4 months ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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u/liver_enzyme_liz241 points·4 months ago

Yeah, baseline matters more than any later number.

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u/greta_chukwu113 points·4 months ago

This is the "correlation is mechanism" thing again. You changed three variables at once.

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u/lipid_panel_larrybloodwork156 points·4 months ago·edited

HOMA-IR is crude but free and useful for tracking

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u/mikkel_ogunleye112 points·4 months ago

This is correct. ApoB is the better marker.

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u/emil_okwuosa0 points·4 months ago

What are your reference ranges?

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u/nikhil_asante278 points·4 months ago

Rodent data is rodent data. Dose scaling is not linear and the models tell you what to investigate, not what to expect.

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u/whois_wanda129 points·4 months ago

This is correct. ApoB is the better marker.

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u/amara_dziedzicOP97 points·4 months ago

Ferritin tanked from 16 to 25. Small appetite, reduced iron intake, nobody was testing it until I asked.

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u/neha_rahimi28 points·4 months ago

Ferritin tanked from 16 to 25.

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

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u/janek_ferrari32 points·4 months ago

Small correction: the trial was 10 weeks, not 8. Does not change your point but people will quote it.

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u/coa_forgery_watch-15 points·4 months ago

Ferritin tanked from 16 to 25.

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

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u/flair_enthusiast96 points·4 months ago

I am going to push back on this slightly.

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u/chidi_abubakar56 points·4 months ago

ferritin tanks quietly on a reduced appetite, check it

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u/santiago_rasmussen71 points·4 months ago

ferritin tanks quietly on a reduced appetite, check it

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u/micro_bump_mick103 points·4 months ago

ferritin tanks quietly on a reduced appetite, check it

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

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u/emil_agyeman39 points·4 months ago

Do you have baseline to compare to?

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u/elin_varga16 points·4 months ago

A1c moves slowly, quarterly is plenty

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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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