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Why you should avoid carbonated drinks after gastric sleeve surgery, gastric sleeve surgery — also known as sleeve gastrectomy — involves removing about 70–80% of the stomach, leaving a narrow tube-shaped section.
This smaller stomach limits food intake and supports weight loss, but it also becomes more sensitive to physical pressure and gas expansion.
Because of this, every choice you make after surgery matters, especially what you drink.
Carbonated drinks — such as cola, soda, sparkling water, and energy drinks — contain dissolved carbon dioxide (CO₂).
When consumed, this gas expands in your stomach, much like air inflating a balloon.
👉 Did You Know? Even sparkling water and “zero-calorie” sodas can trigger these issues — it’s not just sugary drinks!
Imagine shaking a closed bottle of soda — when you open it, the gas bursts out forcefully.
Now imagine that same pressure inside your newly formed, smaller stomach pouch.
The result? Discomfort, pain, and long-term damage to your surgical success.
Research published in Obesity Surgery Journal and Surgery for Obesity and Related Diseases (SOARD) shows that:
It’s not just beverages — effervescent vitamin or medication tablets also produce gas.
When dissolved in water, they release CO₂, which can lead to the same stomach pressure and bloating effects.
✅ Better Alternative: Ask your doctor about chewable or liquid supplements instead of effervescent ones.
If you regularly drink carbonated beverages after gastric sleeve surgery, you may experience:
To stay hydrated and protect your stomach after surgery, here are the best options:
| Beverage Type | Benefits |
| Still Water | Keeps you hydrated without causing gas. |
| Herbal Teas | Helps digestion and relaxation. Avoid caffeine. |
| Sugar-Free Drinks | Choose non-carbonated options like flavored water drops. |
| Diluted Natural Juices | Use in moderation — choose low-acid fruits like watermelon or cucumber. |
👉 Pro Tip: Sip liquids slowly throughout the day instead of drinking large amounts at once.
1. Can I ever drink soda again after gastric sleeve surgery?
No. Even years after surgery, carbonation can still expand your stomach and cause discomfort. It’s best to avoid soda permanently.
2. What about sparkling water — is it safe?
No. Even unsweetened sparkling water releases gas bubbles that increase stomach pressure.
3. When can I start drinking liquids after surgery?
You can start with small sips of still water 24–48 hours after surgery, as advised by your surgeon.
4. What happens if I accidentally drink something carbonated?
You may experience pain, bloating, or nausea. Avoid repeating it, and consult your surgeon if discomfort persists.
5. Can carbonation cause my stomach to stretch permanently?
Yes. Repeated exposure to gas pressure can expand the stomach sleeve, making the surgery less effective.
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This article is for informational purposes only and does not replace medical consultation. Always follow the instructions of your bariatric surgeon or healthcare provider for accurate diagnosis, post-surgery care, and treatment recommendations.
After gastric sleeve surgery, your new stomach is delicate, smaller, and more sensitive.
By avoiding carbonated drinks and effervescent tablets for life, you:
👉 Takeaway: Stick to still water, gentle herbal teas, and sugar-free non-carbonated drinks — your stomach will thank you for it.
