Camellia sinensis
Traditional use: green tea (L-theanine + caffeine) improves focused attention without jitters. Evidence rated low.
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Traditional use: green tea (L-theanine + caffeine) improves focused attention without jitters. Evidence is rated low. See the Evidence section above for cited sources.
See the alternatives section above — we list other species with documented effects on Energy & focus, ranked by evidence quality.
No. This is educational reference. Always consult a healthcare professional before using any herbal preparation, especially alongside prescription medication.
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