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c/glp1muscle·submitted 10 days ago by u/hamza_zielinski

[Discussion] FFMI not weight, or you will celebrate losing muscle

Discussionbranch of 10 comments

Posting this as a discussion rather than a claim: FFMI not weight, or you will celebrate losing muscle. Strength retention is an imperfect but free longitudinal proxy: it is affected by neural factors and by being in a deficit, so it tracks tissue change loosely rather than exactly. Fat-free mass index is a ratio of…

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10 comments, started 10 days ago
u/nayeli_fonseca33 points·10 days ago

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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[deleted]24 points·9 days ago

[deleted]

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u/tuva_kirchner11 points·9 days ago

losing weight slower does not automatically preserve more lean mass

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u/hamza_zielinskiOP8 points·9 days ago

That protein figure is grams per day, not grams per kilogram. Different claim entirely.

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u/yara_mensah42 points·9 days ago

the appetite effect makes eating enough protein a logistics problem

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u/protein_first_pnutrition13 points·9 days ago

Agreed on the error margin. Quoting a DEXA to one decimal implies a precision the method does not have.

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u/ferran_dahlberg-6 points·9 days ago

nothing on this board is a training or nutrition prescription

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u/viktor_laurent5 points·9 days ago

Yes. Lean mass change during weight loss is expected; the useful question is the proportion, not whether it happens.

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u/dexa_twice_yearlybody comp2 points·8 days ago

Agreed — protein and resistance training. Everything else in these threads is a rounding error on those two.

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u/maintenance_mode_maxmaintenance3 points·8 days ago

Small fix — that is fat-free mass, not muscle mass. The scan cannot separate them the way the post assumes.

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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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