Green Tea L-Theanine Calm
Alert relaxation without drowsiness
Strong evidenceHerbs in this remedy
About this remedy
Green tea contains L-theanine, an amino acid that promotes alpha brain wave activity — the state associated with calm alertness. It also provides B vitamins (which support nervous system function) and vitamin C. Studies show L-theanine significantly reduces anxiety and stress reactivity within 30–40 minutes without causing drowsiness. The combination with small amounts of caffeine provides calm focus rather than jitteriness.
Preparation
Steep high-quality green tea in water at 175°F (80°C) for 2–3 minutes. Avoid boiling water, which makes the tea bitter. Gyokuro and matcha have the highest L-theanine content.
Dosage
2–3 cups daily. For supplementation, 200–400 mg L-theanine.
Cautions
Contains caffeine (25–50 mg per cup) — avoid late in the day if caffeine-sensitive. Green tea may reduce iron absorption from meals.
Research
Hidese et al., Nutrients, 2019 — RCT; Nobre et al., Asia Pac J Clin Nutr, 2008
Frequently asked questions
What is Green Tea L-Theanine Calm used for?
Alert relaxation without drowsiness. Green tea contains L-theanine, an amino acid that promotes alpha brain wave activity — the state associated with calm alertness. It falls under Stress & Anxiety.
How do you make Green Tea L-Theanine Calm?
Steep high-quality green tea in water at 175°F (80°C) for 2–3 minutes. Avoid boiling water, which makes the tea bitter. Gyokuro and matcha have the highest L-theanine content.
What is the recommended dosage for Green Tea L-Theanine Calm?
2–3 cups daily. For supplementation, 200–400 mg L-theanine.
Is Green Tea L-Theanine Calm safe? Are there any cautions?
Contains caffeine (25–50 mg per cup) — avoid late in the day if caffeine-sensitive. Green tea may reduce iron absorption from meals.
What is the evidence behind Green Tea L-Theanine Calm?
Strong evidence. Hidese et al., Nutrients, 2019 — RCT; Nobre et al., Asia Pac J Clin Nutr, 2008