SAFE — No Known Interaction
🟢 SAFE — St. Johns Wort and L-Glutamine can be taken together safely.
Evidence level: LIMITED
St. Johns Wort and L-Glutamine are generally considered safe to use together based on current medical evidence. No adverse interactions have been reported.
No clinically significant interaction between St. Johns Wort and L-Glutamine has been identified in medical literature or FDA drug labeling.
L-Glutamine is best absorbed on an empty stomach or between meals, while St. Johns Wort is typically taken with food. Consider spacing them 30-60 minutes apart for optimal absorption of both.
For best results: L-Glutamine on a relatively empty stomach (amino acids use active transport that gets crowded by dietary protein). St. Johns Wort with food. If the botanical is an adaptogen and the amino acid supports the same system (e.g., L-theanine + ashwagandha for calm), combining them can be synergistic regardless of food timing.
Generally safe for most adults. Exercise caution if: pregnant or nursing, under 18, managing a chronic condition, or taking 5+ daily supplements. Start with lower doses if you are new to either supplement.
Monitor for neurological and digestive effects when combining St. Johns Wort with L-Glutamine. Amino acids can influence neurotransmitter production and interact with bioactive compounds in botanicals and supplements. Watch for: changes in mood, energy, or sleep patterns; digestive upset (nausea, bloating); headache; restlessness; or vivid dreams. Start at lower doses and increase gradually. Seek medical advice if you experience: persistent mood changes, rapid heartbeat, muscle stiffness, excessive drowsiness, or allergic symptoms. If you take any prescription medications (especially antidepressants or neurological drugs), consult your doctor before adding amino acid supplements.
No urgent need to discuss, but always keep your doctor informed of your full supplement and medication list. Say: "I take St. Johns Wort and L-Glutamine — is that OK?"
Safe to use together. For best results, maintain consistent dosing schedules and monitor how you feel during the first two weeks of combining.
St. Johns Wort and L-Glutamine are generally considered safe to use together based on current medical evidence. No adverse interactions have been reported.
For best results: L-Glutamine on a relatively empty stomach (amino acids use active transport that gets crowded by dietary protein). St. Johns Wort with food. If the botanical is an adaptogen and the amino acid supports the same system (e.g., L-theanine + ashwagandha for calm), combining them can be synergistic regardless of food timing.
Monitor for neurological and digestive effects when combining St. Johns Wort with L-Glutamine. Amino acids can influence neurotransmitter production and interact with bioactive compounds in botanicals and supplements. Watch for: changes in mood, energy, or sleep patterns; digestive upset (nausea, bloating); headache; restlessness; or vivid dreams. Start at lower doses and increase gradually. Seek medical advice if you experience: persistent mood changes, rapid heartbeat, muscle stiffness, excessive drowsiness, or allergic symptoms. If you take any prescription medications (especially antidepressants or neurological drugs), consult your doctor before adding amino acid supplements.
Safe to use together. For best results, maintain consistent dosing schedules and monitor how you feel during the first two weeks of combining.
No urgent need to discuss, but always keep your doctor informed of your full supplement and medication list. Say: "I take St. Johns Wort and L-Glutamine — is that OK?"
Or browse the full interaction database (121,000+ pairs).