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c/glp1muscle·posted 10 months ago by u/rasmus_petrescu

[Question] how do you actually verify protein

Question Slow Clap ×2 Sourced ×1

Genuine question, and the title is the question: how do you actually verify protein.

Hydration status and fasting state affect the lean mass estimate. Standardising both is the difference between a comparison and a coin toss.

DEXA has a meaningful coefficient of variation, and it differs between machines and protocols. Comparing scans from different clinics adds a systematic offset that is invisible on the report.

Some lean mass loss accompanies weight loss in any deficit. Resistance training and adequate protein intake are the two interventions with the best evidence for limiting the proportion.

Corrections welcome, especially the pedantic ones. Pedantry is how this board earns its reputation.

1,472 up / 235 down86% upvoted25 commentsid f1feb10 Sep 2025

25 comments

9 in this archive, depth 4

best — the order this archive was captured in

u/rina_bergstrom213 points·10 months ago·edited

Nothing here is a training or nutrition prescription. Targets and programmes are matters for somebody who knows your history and your training background.

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u/sunday_shot_sal168 points·10 months ago·edited

Not convinced by that DEXA comparison. Different machine, different protocol, and the difference is inside the error.

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u/rasmus_petrescuOP116 points·10 months ago·edited

DEXA has a real error margin and people quote it to one decimal

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u/maren_ibarra-30 points·10 months ago

How many weeks between the two scans?

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u/nayeli_fonseca1 point·10 months ago

Correction: those scans are from different machines, and the difference you are describing is within the measurement error.

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u/marisol_kravchenko1 point·10 months ago

I would not change the programme on the strength of one scan. The measurement error is larger than the effect you are reacting to.

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u/rina_nascimento1 point·10 months ago

protein intake gets harder exactly when appetite drops

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u/incretin_ivypharmacology1 point·10 months ago

I would not change the programme on the strength of one scan.

Disagreeing with this line: rate alone does not preserve lean mass. The training does.

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u/amylin_amyamylin1 point·10 months ago

Disagreeing with this line: rate alone does not preserve lean mass.

Agreed — and same machine, same conditions, or the two scans are not comparable.

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About c/glp1muscle

Lean-mass retention during rapid weight loss: protein targets, resistance-training minimums, DEXA and BIA measurement reality, FFMI tracking, and the sarcopenia question that nobody funded a proper trial for.

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