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GLP-1 stomach side effects: nausea, water and red flags

GLP-1 stomach side effects: nausea, water and red flags

GLP-1 medicines like semaglutide and tirzepatide often cause nausea, vomiting, diarrhoea or constipation because they slow your stomach. These effects are worst when the dose goes up and usually get better over weeks. The real danger is not the nausea itself but losing too much water from vomiting and diarrhoea, which can hurt your kidneys. This article tells you what to expect, how to manage with simple Indian foods and water sipping, and when to call your doctor fast.

13 Jul 2026 · Burnie Academy
glp-1 side-effects hydration

You started a GLP-1 medicine for weight loss or diabetes, and now your stomach feels off. Nausea, a heavy feeling after small meals, sometimes vomiting, loose motions, or the opposite, constipation. This is very common. These medicines do their job partly by slowing your stomach, so food sits longer and you feel full. That same action is why your gut feels strange. This article tells you what to expect, the simple Indian foods and water habits that help, and the red flags that mean you must call your doctor today, not next week. The short line: most of this is normal and settles, but losing too much water from vomiting and diarrhoea is the real danger, because it can hurt your kidneys. Drink water, eat small, and know the red flags.

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