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L-theanine

5

L-theanine

L-theanine is an amino acid naturally found in green tea that promotes relaxation without causing drowsiness.

Does it really work?

Yes. Studies show L-theanine increases alpha brain waves, supporting calm focus, reducing anxiety, and improving sleep quality. It’s often combined with caffeine for smoother alertness.

Can I get enough in real food?

Yes. Green tea is the main dietary source, but the amount is much lower than what’s used in supplements.

Do I need a supplement for everyday health?

Not essential, but for people with racing thoughts, anxiety, or sleep troubles, L-theanine can be a gentle, effective aid.

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The information on this site is for educational purposes only and is not medical advice. Cathy is a passionate self-taught researcher, not a doctor or dietitian. Always consult your healthcare provider before making changes to your diet, supplements, or routine. Read our full Disclaimer, Privacy Policy & Terms →

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