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Wednesday, August 26, 2026

Why is everyone talking about L-Theanine?


877. L-theanine, an amino acid found in tea leaves, is having a moment with longevity enthusiasts and menopause influencers alike, promoted to calm anxiety, clear brain fog, improve sleep, and slow aging. But does the research hold up? In this episode, Monica breaks down what the studies on L-theanine actually show about attention, sleep quality, stress, and cellular aging, and why a cup of coffee or a short nap might do just as much for your focus.


References

Cognitive and affective effects of L-Theanine: a systematic review and meta-analysis of 31 randomized trials | Molecular Psychiatry 

The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis - ScienceDirect 

L-Theanine Extends the Lifespan of Caenorhabditis elegans by Reducing the End Products of Advanced Glycosylation 

l-theanine: From tea leaf to trending supplement – does the science match the hype for brain health and relaxation? - ScienceDirect 


Related episodes

594 - How sleep affects weight gain

834 - The Truth About ‘Cortisol Belly’

848 - Your questions about coffee and health



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Saturday, August 1, 2026

Can you absorb nutrients through the skin?


On a road trip, tackling a summer cleanup, or just catching up on podcasts? QDT has you covered with Summer Saturday encores from your favorite shows. See the full Summer Saturday lineup on Spotify and enjoy this episode, which first aired in August 2024.


Examining whether vitamins and nutrients can really be absorbed through the skin using products like patches and creams. 


New to Nutrition Diva? Check out our special Spotify playlist for a collection of the best episodes curated by our team and Monica herself! 

We've also curated some great playlists on specific episode topics including Staying Strong as We Age, Diabetes, Weight Loss That Lasts and Gut Health! Also, find a playlist of our bone health series, Stronger Bones at Every Age. 

Have a nutrition question? Send an email to nutrition@quickanddirtytips.com.

Follow Nutrition Diva on Facebook and subscribe to the newsletter for more diet and nutrition tips. 

Find out about Monica's keynotes and other programs at WellnessWorksHere.com

Nutrition Diva is a part of the Quick and Dirty Tips podcast network. 


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* This article was originally published here

Could GLP-1 drugs help women with PCOS beyond weight loss? - News-Medical

Could GLP-1 drugs help women with PCOS beyond weight loss?    News-Medical * This article was originally published here ...