Supplement × Supplement·a caution·Insufficient evidence
Caffeinated green tea extract can add stimulation, anxiety, insomnia, or palpitations to a CNS-active nootropic.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
What is happening. Caffeinated green tea extract can add stimulation, anxiety, insomnia, or palpitations to a CNS-active nootropic.
Mechanism. Additive arousal and uncertain CNS interaction profile.
Recommendation. Use decaffeinated products or avoid the combination if sleep, anxiety, or blood pressure is an issue.
Effect on the composite score
If both Green Tea Extract and Noopept are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).
The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.
Every claim on this page is cited. PMIDs link straight to PubMed.
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NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.
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