Stacy Sims on L-Theanine
3 episodes · 3 references · 2025–2026
- Sims personally uses L-theanine and prefers it over magnesium for GABA-related benefits, calling it a non-protein amino acid that activates alpha brain waves and parasympathetic drive. - Sims recommends L-theanine specifically for stimulating the brain's GABA system, positioning it as a sleep or relaxation support. - No specific dosage, timing, brand, or cycling protocol is mentioned across any of the references.
View full L-Theanine page with research, safety, and pricing →“I use theanine, L-theanine... I really prefer theanine over magnesium because it is a non-protein amino acid that is directly related and influenced by part of the GABA system.”
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“I really prefer theanine over magnesium because it is a non-protein amino acid that is directly related and influenced by part of the GABA system in our brain.”
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“We can look at different supplements that we can use that are going to stimulate the GABA system of the brain, and that's what L-theanine does. It is a non-protein amino acid that is used by the brain to activate more of the alpha waves, which is a parasympathetic drive.”
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