Episode 511: All about L-theanine

Episode 511: All about L-theanine

Author: Ali Miller RD September 7, 2026 Duration: 29:59
Can green tea boost your memory? Is the matcha craze worth the hype?  In this episode, Ali Miller RD shares all about L-theanine an amino acid for stress resilience and tolerance with food-as-medicine and supplement support. She shares clinical research studies on the role of L-theanine in mental health and cognitive enhancement as well as physiological stress reduction (lower cortisol and secretory IgA) and improved sleep quality. Also in this episode, Ali unpacks how nervine and adaptogenic herbs can support stress resilience and tolerance while supporting memory and learning. She shares about the reformulation of Calm and Clear and how trace minerals are now present in each capsule with sea-derived magnesium sourcing. Leave with food-as-medicine ways to consume matcha, understanding of clinical dosage of L-theanine for results, and why stress regulation is key in your wellness. Links in this episode: Last call for Early Bird savings on Mentorship Naturally Nourished Academy Mentorship Calm and Clear has been reformulated! Check it out and use CALM15 to save (limited time offer) My favorite matcha Matcha Green Smoothie Matcha Chia Parfait Slice and Bake Matcha Almond Cookies Research studies discussed: l-Theanine, an amino acid in green tea, attenuates beta-amyloid-induced cognitive dysfunction and neurotoxicity: reduction in oxidative damage and inactivation of ERK/p38 kinase and NF-kappaB pathways - PubMed   How does the tea L-theanine buffer stress and anxiety - ScienceDirect   Effects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled Study - PMC Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial - PMC L-theanine, a natural constituent in tea, and its effect on mental state - PubMed  

Tune in to Naturally Nourished for conversations that go far beyond basic diet tips. Hosted by Ali Miller RD alongside cohost Becki Yoo RD, this podcast digs into the practical science of using food as genuine medicine. You’ll hear detailed discussions on identifying nutrient deficiencies, repairing gut health, and finding balance in your hormones. A significant focus is placed on metabolic optimization, often explored through the lens of a structured keto reset. The dialogue is grounded in functional medicine principles, meaning every recommendation is aimed at addressing root causes rather than just symptoms. Each episode is built on a foundation of current research, translating complex studies into actionable strategies for your daily life. The goal is to provide you with clear, evidence-based tools that empower informed decisions about your own well-being. If you’re looking for a resource that combines nutritional expertise with a holistic view of health, this podcast offers a thoughtful and substantive guide on that journey.
Author: Language: English Episodes: 50

Naturally Nourished
Podcast Episodes
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Episode 485 Perimenopause Reset with Dr. Jen [not-audio_url] [/not-audio_url]

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Episode 484: ADHD, Autism & Oxidative Stress [not-audio_url] [/not-audio_url]

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