The Truth About Protein: How Much You Actually Need for Strength & Longevity

Live Well Be Well with Sarah Ann Macklin November 12, 2025
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👉 Practical beats perfect. Here’s a free 5-recipe PDF I use to support energy and stress during busy weeks. https://sarahannmacklin.com/5_free_recipes 👉 If this resonates, you can join the thousands who read The Compassionate Cure each week. https://sarahmacklin.substack.com/ We’re told protein is the key to building muscle. But what if it’s also the key to a sharper mind, balanced hormones, and a longer, more vibrant life? This week’s episode brings together four of the world’s most respected voices in nutrition and longevity to break down the science of protein, metabolism, and healthy aging. Because it’s not about chasing more grams or quick fixes. It’s about understanding how to nourish your body with intention, quality, and care. In this masterclass conversation, I’m joined by some of the world’s leading minds on longevity, metabolism, performance, and muscle health - including: - Dr. Rupy Aujla - NHS GP, author, and founder of The Doctor’s Kitchen, sharing how protein supports longevity, energy, and blood sugar balance. - Dr. Stacy Sims - exercise physiologist, researcher, and menopause educator, challenging the myths holding women back in nutrition and training. - Simon Hill - nutritionist and host of The Proof, explaining how protein quality, source, and timing influence muscle synthesis and long-term health. - Dr. Gabrielle Lyon - functional medicine physician and author of Forever Strong, describing why muscle is the organ of longevity and why protein is its foundation. We explore: - How to use a simple four-step formula to calculate your optimal protein intake for energy, recovery, and healthy aging. - Why women’s protein needs change across their cycle, perimenopause and menopause, and how to adapt with confidence. - How protein timing affects muscle repair, mental clarity, and appetite regulation. - What makes animal and plant protein different, and how to combine them for complete nourishment. - How building lean muscle mass supports metabolism, bone density, and cognitive health. - Why fasting, under-eating, and low-protein diets can accelerate aging and hormone imbalance. - What the latest science reveals about protein’s role in longevity and brain health. - How to design balanced meals that keep you strong, focused, and satisfied every day. This isn’t just a nutrition class. It’s a reframe of how we view food as fuel for strength, mood, and vitality. Whether you’re starting your health journey or fine-tuning longevity habits, these insights will change the way you think about every meal. Love, Sarah Ann 💛 *** This episode is sponsored by: NOWATCH: The compassionate health tracker Connecting body and mind with unique stress recovery insights so you can live fully today 15% off with code LWBW15 at nowatch.com *** The Great British Veg Out How to support your gut, energy, and hormones by eating more — not less. 👉 sarahannmacklin.com/vegout Reset Your Health If your body feels off after stress, travel, or burnout — this is where to start. 👉 sarahannmacklin.com/reset-your-health *** Let’s be friends! 📷 Instagram: / sarahannmacklin 📹 Subscribe: / @livewellbewellsarah 🐦 Twitter: / sarahannmacklin 📱 TikTok: / livewellbewellpodcast 💌 Newsletter: https://sarahmacklin.substack.com/ *** If you enjoyed this episode you might also like: Are You Eating Enough Protein? The 4-Step Formula That Boosts Health & Longevity | Dr Rupy Aujla | https://youtu.be/AySFUeR1pw8?si=8_5DufKLSn7cVh5P Protein Masterclass: Protein Amount, Quality & Timing with Simon Hill | https://www.youtube.com/watch?v=3VNjCFrgWdo Dr. Stacy Sims EXPOSES the Myths Hurting Women's Health | Fasting, Protein & Exercise | https://youtu.be/E1uksGzoick?si=oa8RtrxRjOaCQ_AQ *** Highlights: 0:00:00 Introduction: Why Protein Confuses Everyone 0:02:22 How to Calculate Your Optimal Protein Intake for Energy, Recovery & Longevity 0:06:24 Why Protein Needs Increase with Age and Activity 0:21:51 Morning Protein for Women: Balancing Hormones and Energy 0:27:29 How Fasting and Undereating Disrupt Hormones and Accelerate Aging 0:30:17 Building the Ideal Woman’s Plate: The 40-30-30 Formula 0:34:42 Plant vs. Animal Protein: How to Combine Them for Complete Nourishment 0:37:36 The Leucine Threshold and High-Quality Protein Explained 0:47:11 Building Lean Muscle for Metabolism, Bone Density & Brain Health 0:58:00 Does Protein Timing Really Matter? What the Science Shows 1:04:35 Protein Shakes: When They Help and When to Skip Them 1:10:11 Why Strength Training Unlocks Protein’s Full Benefits *** Love what you’re hearing? My small ask is to please rate and review Live Well Be Well. This helps the show expand and allows me to keep producing these with the best quality guests. It means a huge amount to me, so thank you.

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