Evidence-based cost-benefit analysis of L-Theanine.
L-Theanine has been shown to improve subjective sleep onset latency, which means it may help individuals fall asleep faster. It is a non-proteinogenic amino acid found in tea that is thought to promote relaxation and reduce stress without causing drowsiness.
Individuals experiencing difficulty falling asleep or looking for a natural way to improve sleep quality may benefit most from L-Theanine supplementation.
While L-Theanine is generally considered safe for most people, it is important to consult with a healthcare provider before starting any new supplement, especially if you are pregnant, nursing, have a medical condition, or are taking medications. L-Theanine may interact with certain medications or have contraindications for specific health conditions. Additionally, individual responses to supplements can vary, so it is recommended to start with a low dose and monitor for any adverse effects.
Compare other supplements by cost and evidence
Educational and research purposes only. Always consult a healthcare professional before starting any supplement regimen. ROI is modelled at $100,000 per quality-adjusted life year; see the methodology.