Does melatonin make poop?
Michael Gray
Updated on May 05, 2026
Stomach problems Melatonin also causes stomach discomfort in some people. This may include cramps, nausea, and diarrhea.
Does melatonin affect bowel movements?
IBS symptom score was significantly greater after treatment with melatonin (3.9 ± 2.6) than with placebo therapy (1.3 ± 4.0, P = 0.037 The beneficial effects of melatonin were most marked in symptoms such as abdominal plain, abdominal distension and abnormal sensation of defecation.What are the side effects of taking melatonin?
The most common melatonin side effects include: Headache. Dizziness. Nausea.
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In addition, melatonin supplements can interact with various medications, including:
- Anticoagulants and anti-platelet drugs.
- Anticonvulsants.
- Contraceptive drugs.
- Diabetes medications.
- Medications that suppress the immune system (immunosuppressants)
Does taking melatonin make you constipated?
I researched on internet and found that melatonin can cause constipation, particularly in women over 60. So I advise anyone taking this to be on the alert for such a side effect.What are the 10 side effects of melatonin?
Several unpleasant side effects may occur with regular melatonin use, these include:
- dizziness.
- stomach cramps.
- headaches.
- nausea.
- confusion or disorientation.
- depression.
- irritability.
- anxiety.