In today’s episode of The Proof, we dissect a video featuring Dr. Gabrielle Lyon discussing protein sources and the importance of leucine for muscle building. I break down her claims, compare animal and plant protein sources, and explore the latest research on muscle protein synthesis and long-term health outcomes.

Introduction (00:00)
Dr. Lyon's Argument: Animal vs. Plant Protein (00:17)
Critiquing Dr. Lyon's Protein Source Comparisons (01:14)
Evaluating the Leucine Threshold Hypothesis (03:13)
Plant-Based Protein Sources: A Deeper Look (06:30)
Scientific Studies on Protein and Muscle Growth (15:40)
Conclusion (25:17)

Key Discussion Points:

Dr. Lyon’s Claims
Comparing Protein Sources
The Leucine Threshold Debate
Beyond Muscle Protein Synthesis

Plus, if you watch/listen all the way to the end I share a fun personal story about my 90-year-old grandma who took up walking 10km a day!

Enjoy,

Simon

Want to support the show?

The best way to support the show is to use the products and services offered by our sponsors. To check them out and enjoy great savings, visit theproof.com/friends. You can also support the show by leaving a review on the Apple Podcast app and sharing your favourite episodes with friends and family.

This episode is brought to you by:

38TERA

Consider 38TERA's DMN prebiotic supplement a daily multivitamin for your gut. Formulated by yours truly and gastroenterologist Dr Will Bulsiewicz. Use code THEPROOF for a discount at checkout.

Calm

Find your calm anytime, anywhere with Calm, the #1 app for meditation and relaxation. From guided meditations to sleep stories and breathing exercises, Calm helps you reduce stress, improve focus, and sleep better. Visit calm.com/proof for 40% off a premium subscription today.

Function Health

Track, optimise, and thrive with Function Health. Access 100+ lab tests – five times more than a typical physical – including ApoB and LP(a), no doctor approval needed. Get science-backed insights and track your results over time. Skip the 400,000-person waitlist at functionhealth.com/simonhill. Only available to those living in the United States.

Shopify

Shopify, the world's leading e-commerce platform, helps you turn browsers into buyers with the internet’s best-converting check out–up to 36% better compared to other leading e-commerce platforms. To boost your conversion rate, and grow your business, sign up for a one-dollar-per-month trial period at shopify.com/proof.

Pique Tea

Pique's Nandaka provides sustainable, all-day energy and makes you feel like you’re doing something good for your body! Try Pique and get 20% off plus a FREE starter kit when you shop exclusively at Piquelife.com/simon.

Eimele

Eimele Essential 8 is a comprehensive multivitamin that is scientifically formulated to complement your plant-rich diet, increase and sustain your energy, and support the immune system, as well as heart and brain health. Follow this link for 20% off one-time purchases and subscriptions.

Simon Hill, MSc, BSc (Hons)

• Creator of theproof.com

• Host of The Proof with Simon Hill

• Author of The Proof is in the Plants

Subscribe & Connect:

• YouTube

• Apple Podcasts

• Spotify

• Instagram: @simonhill

• Twitter: @theproof

• Facebook: The Proof with Simon Hill

Nourish your gut with my Plant-Based Ferments Guide and download my Two-Week Meal Plan.