Introduction Joy's Question That Many Patient Share “Hi all… what can I take to get my bowels moving?”
Introduction Joy's Question That Many Patient Share
“Hi all… what can I take to get my bowels moving?”
This is one of the most common questions we receive in the first weeks after gastric sleeve surgery — especially from our patients in New Zealand and Australia.
So, is it normal?
Why does the body react like this?
Should you worry?
In this guide, we explain everything clearly, drawing on insights from Assoc. Prof. Dr Ozan Şen and evidence-based recommendations from Dietitian Cemre Yamaner.
1. Why Do Bowel Changes Happen After Gastric Sleeve Surgery?
Your digestive system goes through a temporary adaptation period. During this time, both constipation and diarrhoea can happen, and both are usually normal.
Main reasons for bowel changes:
1. Reduced stomach volume → less volume reaches the intestines
Your intestines move according to the amount of food entering them.
Less volume = slower movement.
2. Low fiber intake in the first weeks
During the liquid and purée stages, fiber intake is extremely limited.
This is one of the biggest causes of constipation.
3. Not drinking enough water
With a smaller stomach, drinking water becomes more difficult.
Dehydration immediately slows bowel movement.
4. Protein-focused diet
Protein is the priority in the first weeks.
Low fiber + high protein = constipation.
5. Temporary microbiome changes
Rapid weight loss and sudden dietary changes affect the gut flora.
2. What to Expect Week-by-Week
Weeks 1–2 (Liquid Stage)
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Constipation is very common
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Some patients experience diarrhea due to protein shakes
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Reduced water intake worsens constipation
Weeks 3–4 (Purée Stage)
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The digestive system begins adjusting
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Mild to moderate constipation may continue
Weeks 5–8 (Soft Foods)
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Fiber intake increases
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Bowel movements normalize gradually
2 to 6 Months
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The digestive system settles into its new rhythm
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Persistent issues should be reviewed with your doctor or dietitian
3. Expert Insight from Assoc. Prof.Dr. Ozan Şen
“It is completely normal to experience irregular bowel movements for 2–8 weeks after gastric sleeve surgery.Constipation is more common, but some patients may have diarrhea due to liquid proteins.
If symptoms last longer, we assess hydration, fiber intake, vitamin-mineral supplements, and the overall clinical picture.”
4. Dietitian Cemre Yamaner’s Recommendations for Healthy Bowel Movement
Dietitian Cemre Yamaner provides practical, safe and effective solutions for post-op constipation and bowel sluggishness:
1. Cook apple or pear with the skin and blend it
Consume one serving every day.
Pectin helps regulate bowel movement naturally.
Best taken in the morning on an empty stomach.
2. Increase water intake
Small stomach = small sips.
Frequent small sips throughout the day are essential.
3. Add soluble fiber (such as Optifibre)
Helps soften stool and regulate bowel movement.
Safe for post-op patients.
4. Walk after meals
Even 5–10 minutes of light walking stimulates the intestines.
5. Include vegetables in every meal
Puréed or soft vegetables work perfectly in early phases.
5. What About Diarrhea? Is It Normal?
Yes — especially in the first 1–2 weeks.
Possible reasons:
- Protein shakes
- Mild lactose intolerance
- Rapid liquid intake
- Gut flora adjustment
This usually resolves on its own.
6. When Should You Contact Your Doctor?
- Severe constipation lasting longer than 72 hours
- Continuous diarrhea lasting more than a week
- Intense abdominal pain
- Fever
- Bleeding
If any of these occur, contact your medical team promptly.
7. Should You Worry About Constipation or Diarrhea After Gastric Sleeve?
No — in most cases, it is completely normal.
Your body is learning a new rhythm.
With:
✔ adequate fluids
✔ balanced nutrition
✔ movement
✔ support from your medical team
your bowel movements will usually normalize within 6–8 weeks.
💬 Ready to Learn the Facts About Gastric Sleeve?
Schedule a call with Selin, our gastric sleeve expert, to explore your options, costs, and packages in Turkey.
✅ Your transformation starts here.
Real Stories: Life-Changing Transformations from New Zealand & Australia
Sarah, 38, Christchurch, New Zealand
"Before my gastric sleeve surgery with &New Me, I struggled with obesity-related health issues. Now, I’ve lost 40 kg, and my diabetes is under control. I finally feel like myself again."
Michael, 45, Sydney, Australia
"I hesitated for years, but &New Me gave me confidence. I lost 50 kg post-surgery, and my energy levels have skyrocketed!"