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ForumsSemaglutide (Ozempic / Wegovy)Has anyone dealt with semaglutide and gut microbiome changes? Page 2

Has anyone dealt with semaglutide and gut microbiome changes?

SteveThurs Fri, Aug 1, 2025 at 11:39 PM 12 replies 1,288 viewsPage 2 of 3
sarah_nash92
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Aug 2, 2025 at 2:29 AM#6
Previously posted:
Weeks 1-4 (0.25mg): This is your "get used to it" phase. Honestly, at this dose most people feel very little.

This is so helpful, thank you!! Quick question — does it matter what time of day you inject? My doctor said once a week but didn't specify morning vs evening. I've seen some people say evening is better for managing nausea because you sleep through the worst of it?

19 22NauseaFreeNow, SteveThurs, B12Beth and 16 others
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sarah.morrison
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Aug 2, 2025 at 2:46 AM#7

I do mine Saturday mornings so if I feel crappy I have the weekend to deal with it. Some people swear by evening injections so you sleep through the initial nausea wave. Honestly, semaglutide has a half-life of about 168 hours (a full week), so the drug levels stay pretty stable — the nausea isn't really about peak levels, it's more of an initial GI adjustment thing.

Just pick a day and time that works for you and stay consistent. The most important thing is not missing doses.

50 23roxy_nash, tony_orlando, Dr.NephBHM_UK and 47 others
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Dr.ObesityLA
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Aug 2, 2025 at 3:03 AM#8

ngl I was expecting way worse based on TikTok horror stories. My first month on 0.25 I had literally zero side effects. Like nothing. I actually called my pharmacy to make sure I got the real stuff lmao

It wasn't until 1.0 that I really felt it kick in. So don't panic if the first month feels like nothing is happening.

1 3tampaLisa73
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HPLC_Greg
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Aug 2, 2025 at 3:20 AM#9

Since we're talking expectations, here's a rough timeline of what the STEP trials showed for average weight loss at each phase. Keep in mind these are AVERAGES — individual results vary wildly:

TimepointDoseAvg Weight Loss (% body weight)Notes
Week 40.25mg~1.5%Sub-therapeutic dose
Week 80.5mg~3.5%Appetite effects begin
Week 161.0-1.7mg~7-8%Significant reduction in food noise
Week 282.4mg~10-12%Nearing plateau for many
Week 682.4mg~14.9%STEP 1 endpoint

So for the OP at 224lbs, a "typical" STEP-1-like result would be roughly 33lbs over 68 weeks. But there's huge variance — about a third of participants lost >20% body weight.[1]

27 3Dr.MetabolicMD, RetaRick_CA, JenPlateau and 24 others
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james_edin
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Sep 2024
Edinburgh, UK
Aug 2, 2025 at 3:37 AM#10

You guys are amazing. I feel so much more prepared now. I'm going to do my first injection Saturday morning, have ginger candies ready, fiber supplements on order, and a big water bottle charged up.

I'll report back next week with how it goes. Wish me luck! 🤞

Last edited: Aug 2, 2025 at 5:37 AM
38 17bbq_ray_KC, oliver_london, tane_welly and 35 others
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