L-Theanine
Overview
L-theanine is a unique amino acid found primarily in tea leaves, particularly green tea. It promotes a state of calm alertness by increasing alpha brain waves, which are associated with relaxed but focused mental states. L-theanine supports stress response modulation and contributes to HPA axis buffering, helping the body manage stress more effectively. It also supports GABAergic tone and neurotransmitter balance, making it useful for promoting relaxation and supporting sleep preparation when combined with other calming nutrients.
Recipes
1 recipe containing this substance
Matcha Mitochondria Smoothie
Mitochondrial energising smoothie rich in polyphenols, magnesium, and antioxidants
Foods
1 food containing this substance
Green Tea
Source of EGCG, L-theanine, and polyphenols for cognitive and metabolic support
Biological Mechanisms and Implications
| Biological Target | Therapeutic Areas | Mechanism of Action |
|---|---|---|
| Hormonal Response | Contributes to HPA axis buffering and stress response modulation | |
| Neurochemical Balance | Supports GABAergic tone and neurotransmitter balance | |
| Stress Response | — |
References
- L-theanine found in green tea increases alpha waves and calms without sedation; supports evening wind-down and sleep preparation when combined with tryptophan, complex carbs, magnesium, and herbal teas
- L-theanine synergizes with magnesium and tryptophan strategies for circadian alignment and supports GABAergic tone and neurotransmitter balance