Safety Profile
Overall safety rating: Generally Safe
L-Glutamine (Gut Health) Side Effects & Safety
Evidence:Moderate
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Potential Side Effects
- Very well tolerated at standard doses (5-10g)
- Mild GI discomfort possible at very high doses (>20g)
- Theoretical concern about glutamate excitotoxicity in neurological conditions
Drug & Supplement Interactions
- Lactulose — glutamine may reduce lactulose efficacy for hepatic encephalopathy
- Anti-seizure medications — theoretical concern about glutamate conversion
- Chemotherapy — consult oncologist before use (may be beneficial for mucositis)
Maximum Dose
Do not exceed: 40g/day used in clinical settings; 20g/day common upper limit for supplements