a general and vascular surgeon recommends," The most common starting dosage of L-theanine is 200 mg. People will most ...

However, the supplement is unlikely to cause an overdose. L-theanine is usually available in the form of 200-mg tablets. A person can consult a doctor before taking these supplements to get their ...

As medicine, L-theanine has most often been used by adults in doses of 200-400 mg by mouth daily for 4-8 weeks. Speak with a healthcare provider to find out what dose might be best for a specific ...