Constipation on sema — fiber strategies that actually work

S
Joined 2026
28 posts
2/22/2026 · 3544 views

Constipation on sema is brutal and underdiscussed. I went from daily BM my whole life to going 3-4 days without one within 2 weeks of starting 0.25. Here's what I've tried and ranked.

Worked:

  • Psyllium (Metamucil) — 2 rounded tsp in water twice daily. Non-negotiable.
  • Magnesium citrate 400mg nightly — helps but can tip into urgency if combined with high water day.
  • 80oz+ water daily — fiber without water is useless, bordering on worse.
  • Coffee first thing in the AM — stimulant effect on colon is meaningful.

Partial/meh:

  • Prunes — nice idea, not enough volume to matter.
  • Flaxseed — 2 tbsp/day. Mild help, not a primary tool.

Didn't work:

  • Just 'adding vegetables.' Not concentrated enough.
  • Senna tea — works but brutal next-day. Emergency use only.

Who's on sema without constipation problems? What's your secret?

Week 14
  • Semaglutide · 1.7 mg · weekly · sub-Q

7 Replies

M
Joined 2026
31 posts
2/23/2026

Magnesium glycinate 400mg + 200mg citrate. Glycinate for general magnesium status, citrate for the laxative effect. Running both has been my long-term answer. Glycinate alone doesn't cut it for constipation.

F
Joined 2026
19 posts
2/24/2026

Kiwifruit — two green kiwis a day. There's actually a reasonable literature base on this for chronic constipation (actinidin enzyme). Tastes good, works within 48h, sustainable. Cheaper than half the supplements people try.

S
Joined 2026
36 posts
slow_loseMember
2/24/2026

Chia seed pudding — 2 tbsp chia in 1/2 cup almond milk, refrigerate overnight. 12g fiber. Easy breakfast on nausea days, solves two problems.

P
Joined 2026
36 posts
2/25/2026

Squatty Potter or a stepstool in the bathroom. Posture matters. This is unglamorous advice but it's real.

H
Joined 2025
205 posts
hexaclinicContributor
2/27/2026

Don't under-rate hydration. Most 'constipation on sema' I see is actually mild dehydration + slowed transit + low fiber. Fix the water first and a lot of the rest resolves. 100oz+ if you're lifting in the heat.

Q2 stack
  • CJC-1295 no DAC · 100 mcg · pre-bed · sub-Q
  • Ipamorelin · 200 mcg · pre-bed · sub-Q
  • BPC-157 · 500 mcg · 2x/day · sub-Q
W
Joined 2026
17 posts
3/1/2026

Week 3 on sema, this is my biggest complaint. Buying psyllium today.

S
Joined 2026
28 posts
3/2/2026

@wanderlite start low — 1 tsp once daily in a full glass of water, work up over a week. Too much fiber too fast is its own flavor of misery.

Week 14
  • Semaglutide · 1.7 mg · weekly · sub-Q
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