NFH GABA-T SAP pairs GABA (300 mg) with L-theanine (150 mg) in a 2:1 ratio — two calming compounds that work through different but complementary pathways.How GABA and L-theanine work togetherGABA is the body's most abundant inhibitory neurotransmitter, dampening overexcitation in the nervous system and supporting relaxation and sleep, though how much orally supplemented GABA crosses the blood-brain barrier is still debated in the research. L-theanine, by contrast, reliably crosses the blood-brain barrier and increases alpha brain wave activity — the state associated with calm, relaxed alertness — while also helping curb cortisol response and stress-related carb cravings.Often chosen by Anyone managing everyday stress and looking for calm without sedation People supporting healthy sleep onset Those wanting a non-drowsy daytime calming option Format and exclusions60 vegetable capsules per bottle, 1 capsule daily. Non-GMO, and made without gluten, dairy, soy, or artificial additives.Before you startCheck with a healthcare practitioner before combining with sedatives, anti-anxiety medication, or blood pressure medication, since GABA and L-theanine can have additive calming or blood-pressure-lowering effects. Store in a cool, dry place, and keep out of reach of children.About NFHNutritional Fundamentals for Health is a Canadian practitioner-channel supplement brand, formulated to the specifications healthcare practitioners request rather than to a retail price point.Further reading: Health Canada on vitamins and minerals