🍪 The GLP Lounge uses cookies to improve your experience, analyze traffic, and personalize content. By continuing to use this site, you agree to our Cookie Policy.
Evidence-based GLP-1 & peptide discussion since 2023
ForumsPublic SquareMuscle protein synthesis rates on GLP-1 — leucine threshold discussion Page 2

Muscle protein synthesis rates on GLP-1 — leucine threshold discussion

ChrisMacros Mon, May 25, 2026 at 8:37 AM 21 replies 460 viewsPage 2 of 5
Dr.SleepRoch
Senior Member
1,123
5,678
Apr 2024
Rochester, MN
May 25, 2026 at 9:54 AM#6
SarahChen_PharmD said:
Distribution matters less than total but it is not nothing.

I will push back on the powder-first advice. It works and it also trains people out of eating food, and when the drug stops the habits are what remain. Getting protein from meals is slower and holds up better afterwards.

Last edited: May 25, 2026 at 1:54 PM
30 0sarah_TO, wendy_avl, jason_paloalto and 27 others
Reply Quote Save Share Report
josh_phd_bmore
Member
389
1,678
Jul 2024
Baltimore, MD
May 25, 2026 at 10:25 AM#7

One concrete data point for the thread. If you are tracking this properly: same scanner, same time of day, same hydration, at least six months apart, and read grip strength or a lift number alongside it. Function is the outcome; the scan is the proxy.

Last edited: May 25, 2026 at 12:25 PM
29 24Dr.ObesityLA, NurseKim_ATL, paul_denver and 26 others
Reply Quote Save Share Report
Dr.SportsMedIN
Senior Member
1,456
6,789
Feb 2024
Indianapolis, IN
May 25, 2026 at 10:55 AM#8
Dr.SleepRoch said:
I will push back on the powder-first advice.

There is a second half to this that has not been said yet. The honest range is roughly 20 to 40% of total loss as lean mass without deliberate resistance training, and roughly 10 to 20% with it plus adequate protein. Both numbers need a caveat that matters: "lean mass" on a DEXA is not muscle. It includes water, glycogen and the lean fraction of organs, and glycogen alone carries about three grams of water per gram. A large early lean drop is mostly the glycogen and water going, which is why the first scan flatters and the second is the honest one.

Last edited: May 25, 2026 at 3:55 PM
28 23adam_van, Dr.SurgeonPGH, rachel_ABQ and 25 others
Reply Quote Save Share Report

PeptideMeter — Independent Peptide Analytics

Community-driven peptide testing and vendor rating platform. Transparent results. Unbiased analysis. Trusted by thousands.

View Results
AussieAnna
Member
678
2,890
Jun 2024
Sydney, AU
May 25, 2026 at 11:25 AM#9

A narrower follow-up, since the general answer is now clear:

Whether the RDA is the wrong reference entirely during rapid weight loss, and what the actual target should be?

Last edited: May 25, 2026 at 12:25 PM
27 22bri_stats, pete_manc_UK, anna.melb_AU and 24 others
Reply Quote Save Share Report
ChrisMacros
Member
567
2,345
Sep 2024
Michigan
May 25, 2026 at 1:51 PM#10

OP back with an update, since a thread like this is useless without one.

Update: two thirds of the target before midday. Same total, same appetite, and I am hitting it most days now.

Last edited: May 25, 2026 at 4:51 PM
41 14bri_stats, pete_manc_UK, anna.melb_AU and 38 others
Reply Quote Save Share Report

Similar Threads

SELECT trial 4-year follow-up data released — sustained MACE reduction16 replies
GLP-1 receptor agonists and thyroid C-cell concerns — evidence review19 replies
Is there a ceiling effect for GLP-1-mediated weight loss?20 replies
Comparative pharmacokinetics: semaglutide vs tirzepatide vs retatrutide6 replies
My 18-month semaglutide journey — comprehensive data log20 replies
ForumsNewTrendingMembersAccount

Log In

Forgot password?
No account? Register