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ForumsNutrition & SupplementationCollagen peptides for GLP-1 skin elasticity — what worked for you?

Collagen peptides for GLP-1 skin elasticity — what worked for you?

pete_RVA Fri, Jul 11, 2025 at 5:53 PM 39 replies 1,723 viewsPage 1 of 8
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pete_RVA
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Dec 2024
Richmond, VA
Jul 11, 2025 at 5:53 PM#1

My appetite is suppressed enough that hitting a protein target is now the hardest part of the day, and everything I read assumes I can simply eat more.

The bit I cannot resolve on my own is whether the RDA is the wrong reference entirely during rapid weight loss, and what the actual target should be.

I have searched first, so if this is covered somewhere point me at it and I will read it.

12 7mike_mod, SarahChen_PharmD, sarah.morrison and 9 others
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labquiet_amy
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Mar 2024
Cambridge, MA
Jul 11, 2025 at 6:00 PM#2

Taking the question as asked, rather than the general version of it. Distribution matters less than total but it is not nothing. Roughly 25 to 40g per sitting with enough leucine to trigger synthesis, three or four times a day, is more effective than the same total in one enormous evening meal — and on a suppressed appetite the enormous evening meal is the one you will not finish anyway.

Last edited: Jul 11, 2025 at 8:00 PM
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sarah_TO
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Sep 2024
Toronto, CA
Jul 11, 2025 at 6:07 PM#3
labquiet_amy said:
Distribution matters less than total but it is not nothing.

True, and anyone with reduced kidney function needs that target set by a clinician rather than a forum. High protein is safe in normal kidneys and is not automatically safe in impaired ones.

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ChrisMacros
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Sep 2024
Michigan
Jul 11, 2025 at 6:14 PM#4
pete_RVA said:
My appetite is suppressed enough that hitting a protein target is now the hardest part of the day, and everything I read assumes I can simply eat…

This matches mine closely enough to be worth saying so. On a suppressed appetite the winning strategy is protein density per unit of volume, not per calorie. Isolate powders, Greek yoghurt and cottage cheese, egg whites, lean fish, and tinned tuna all deliver a lot of protein in a small physical volume. Front-load it: appetite is usually least suppressed in the first hours after waking and worst on the day or two after dosing, so get the majority in early in the day and early in the week.

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sophie_paris
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Nov 2024
Paris, FR
Jul 11, 2025 at 6:48 PM#5

From the other side of the consultation, briefly.

DEXA scan update relevant to protein intake:

Scanned at months 0, 6, and 12. Here are the body comp numbers:

BaselineMonth 6Month 12
Total mass270 lbs220 lbs207 lbs
Fat mass110 lbs70 lbs42 lbs
Lean mass148 lbs153 lbs154 lbs
Body fat %39%33%21%

Lean mass preserved — actually GAINED 1-2 lbs thanks to progressive overload + 1.4g/kg protein. The protein intake discussion needs to include body comp data, not just scale weight.

8 3BethLabQueen, ChrisMacros, KetoKyle and 5 others
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