
'Biggest Loser' Researcher Explains: How to Burn Fat Without Slowing Your Metabolism (Dr. Ravussin Recap)
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In this solo episode, Vanessa recaps her conversation with Dr. Eric Ravussin—one of the world’s foremost experts in metabolism, fat loss, and caloric restriction, author of the Biggest Loser and CALERIE studies.
You’ll learn the truth about metabolic adaptation and why fat loss becomes harder over time, especially when using GLP-1 medications. Vanessa breaks down Dr. Ravussin’s findings on how to preserve lean mass during weight loss, optimize protein intake, and protect your metabolism—especially if you’re a woman or in midlife.
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This deep-dive solo covers:
🧬 What metabolic adaptation really is and how it sabotages fat loss
💪 Why muscle loss on GLP-1s (up to 50% lean body mass!) is a growing concern—and how to prevent it
🥩 The right amount of protein for preserving muscle while losing fat
🔥 How metabolic flexibility affects your ability to burn fat
🕐 Intermittent fasting vs. calorie restriction: which boosts longevity and mitochondrial health
⚖️ Low fat vs. low carb: which strategy really works best when protein is optimized
📉 How to overcome weight plateaus and maintain results
🧠 Why obesity is a disease of the brain—and how to change your food environment to win
Whether you’re dieting, training, or optimizing for longevity, this episode is packed with evidence-based insights to help you build a leaner, stronger, healthier body for life.
Free high-protein keto guide: The Keto Reset eBook https://ketogenicgirl.com/pages/new-free-ebook
👤 Connect with Vanessa:
• Instagram: @ketogenicgirl
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Follow @optimalproteinpodcast on Instagram to see visuals and posts mentioned on this podcast.
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The content provided in this podcast is for informational purposes only and should not be construed as medical advice. Consult with a healthcare professional before making significant changes to your diet or exercise regimen.
📲 Stay Connected with Vanessa:
Instagram: @ketogenicgirl
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