Dosage

Clinical studies show that theanine is effective in dosages ranging from 50 to 200 mg per day (about what you would find in 2-4 cups of green tea). Because theanine reaches its maximum levels in the blood between 30 thirty minutes and 2 two hours after taking it, it can be used as both as a daily anti-stress and mental-focus regimen and "as needed" as a supplement during stressful times. Although probably safe for pregnant women and nursing mothers, we discourage its use by them pending conclusive research.