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ForumsExercise & Body CompositionThrew up at the gym on injection day - lesson learned — what worked for you? Page 2

Threw up at the gym on injection day - lesson learned — what worked for you?

mike_mod Tue, Nov 18, 2025 at 3:26 PM 49 replies 1,391 viewsPage 2 of 10
COA_Karl
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Nov 19, 2025 at 12:11 AM#6
Dr.ObesityMed said:
Pet owner bonus of training: my dog is also losing weight because we're walking 2-3x more than before.

Exercise-induced nausea amplification with training: I learned the hard way that intense exercise within 36 hours of injection can make nausea much worse. The combination of delayed gastric emptying + exercise-induced blood flow redistribution is rough on the GI system.

My workaround: inject Friday evening, do low-intensity activity Saturday, and save my intense workouts for Tuesday-Thursday when the GI effects have subsided. Timing your training around your injection schedule is a real optimization strategy.

50 20matt_MKE, Dr.ReproEndo, lucas_SP_BR and 47 others
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lucas_SP_BR
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Nov 19, 2025 at 3:38 AM#7

One concrete data point for the thread. Say what you would expect to see if you were wrong, before you look. It is a small discipline and it changes what you notice.

Last edited: Nov 19, 2025 at 5:38 AM
49 19Dr.ObesityLA, NurseKim_ATL, paul_denver and 46 others
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Dr.GutHealth
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Nov 19, 2025 at 7:05 AM#8
COA_Karl said:
Exercise-induced nausea amplification with training: I learned the hard way that intense exercise within 36 hours of injection can make nausea much…

There is a second half to this that has not been said yet. Take it one variable at a time. Almost every unanswerable question in these threads is unanswerable because three things changed in the same fortnight, and no amount of subsequent argument can untangle them after the fact.

Last edited: Nov 19, 2025 at 12:05 PM
48 18jennifer_SEA, tyler_CSCS, VanRx_Mike and 45 others
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josh_phd_bmore
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Nov 19, 2025 at 10:32 AM#9

Following on from MaxMetOK — and this may be the naive question:

Did your prescriber agree with that reading, and if not what was their objection?

47 17KarenAZ_mom, zoe_NC, Dr.ObesityLA and 44 others
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mike_mod
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Nov 20, 2025 at 3:08 AM#10

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

Following up because I said I would. I changed one thing, left everything else alone, and waited the full interval before looking. It resolved, and I cannot prove which half of that did it.

49 22PurityPaulOR, MaxMetOK, MounjBrad and 46 others
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