B12Beth said:A sustained drop to 1,100 or 1,200 calories reliably under-delivers a predictable set: B12, vitamin D, iron, folate, zinc and magnesium.
Blood count monitoring for micronutrients: my doctor noticed my MCV (mean corpuscular volume) trending up at month 6: 89 → 98 fL. This flagged potential B12 or folate deficiency.
Sure enough, B12 had dropped from 620 to 340 pg/mL. Started B12 injections monthly and MCV normalized within 2 months. GLP-1 agonists can impair B12 absorption — this is a real clinical concern that deserves routine monitoring.
A narrower follow-up, since the general answer is now clear:
Did your prescriber agree with that reading, and if not what was their objection?
Dr.GutHealth said:Blood count monitoring for micronutrients: my doctor noticed my MCV (mean corpuscular volume) trending up at month 6: 89 → 98 fL.
Coming at Dr.GutHealth’s question from a different direction. It is worth asking what the claim would look like if it were false. If nothing would look different, it is not a claim about the world and no amount of discussion will settle it.
If somebody has the primary source to hand I would rather cite it than paraphrase it.
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Browse GL BiochemPharmHunterJen said:It is worth asking what the claim would look like if it were false.
True, with the qualification that this is a self-selected group. The people for whom it did not work post less, and that shapes everything we think we know.
Ask again with the specifics and you will get a better answer than this one.