Optimal Protein Podcast with Vanessa Spina

Vanessa Spina
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Feb 13, 2026 • 42min

Why Fat Loss Stalls Despite High Protein: Protein That Actually Counts - Dr. Paul Moughan Recap

Start of episode recap is at 13.41 In today's Friday solocast, Vanessa Spina breaks down the biggest takeaways from her interview with Dr. Paul Moughan—one of the world's leading experts on protein quality, amino acid digestibility, and how much of the protein you eat actually becomes usable by the body. If you've ever wondered why fat loss stalls in a deficit, why muscle can drop even when you "hit your protein," or why metabolic rate seems to slow during dieting—this episode explores a rarely discussed variable: utilizable protein and amino acid delivery to tissues. 🧠 IQBAR – Try the Ultimate Sampler Pack: IQBARs, IQMIX, and IQJOE! Text VANESSA to 64000 for a 20% off discount code What you'll learn in this episode: Why protein grams on labels don't equal protein your body can use The difference between total protein vs. utilizable protein (what actually reaches tissues) How DIAAS (Digestible Indispensable Amino Acid Score) upgrades outdated protein scoring systems Why fat loss diets can unintentionally accelerate lean mass loss if protein quality is low How the body prioritizes amino acids (and why muscle can become the "last resort") The overlooked role of the gut's massive protein turnover and amino acid demand Why low protein quality can contribute to metabolic adaptation (lower RMR over time) Why women in perimenopause/menopause, dieters, vegans, and older adults may be more vulnerable The collagen "protein" mistake: why collagen is not a primary protein source for preserving muscle Practical strategies to improve outcomes without simply "eating more protein" The future of protein labeling: why "digestible protein" may eventually replace total protein on labels BOOST YOUR COLLAGEN & ELASTIN with RED LIGHT THERAPY! Save 20% on all Tone Lux Red Light therapy with the code VANESSA! Learn more about the TONE LUX Crystal red light therapy mask and the brand new accessory the TONE LUX CONTOUR for the neck and décollete Vanessa discusses how using the Tone Device is a proxy for fat loss and autophay on Protein Sparing Modified Fasting (PSMF) days! 👉 Use code VANESSA for 20% off HERE Get my free NEW high-protein keto guide: The Keto Reset eBook Free high-protein keto guide: The Keto Reset eBook 👤 Connect with Vanessa: • Instagram: @ketogenicgirl 📱 Follow @ketogenicgirl for the latest studies and strategies on fat loss and protein optimization 📸 Follow @optimalproteinpodcast for episode visuals and updates 💬 Join the Facebook group: Optimal Protein Podcast Community 🎙 The content in this podcast is for informational purposes only and not nutritional or medical advice. Always consult your healthcare provider before making major dietary or lifestyle changes.
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Feb 9, 2026 • 1h 24min

The Missing Link in Fat Loss: Protein Quality vs Protein Intake — Dr. Paul Moughan

Dr. Paul Moughan, a distinguished professor and global authority on protein quality and DIAAS. He explains why protein grams can mislead. Short takes on amino acid digestibility, DIAAS vs older metrics, why protein quality affects hunger and muscle loss, and practical tips for mixing protein sources to preserve lean mass during dieting.
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Feb 6, 2026 • 38min

Two NEW Studies Change How We Think About Fat Loss & Training + Dr. Arny Ferrando Recap!

New hydration research linking water intake to body fat changes gets spotlighted. A surprising study ties resistance training to cognitive gains. Muscle is framed as the metabolic control center and circulation is highlighted as key for amino acid delivery. Discussion covers why protein needs rise with age and how preserving muscle is essential for lasting fat-loss results.
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Feb 2, 2026 • 1h 12min

Protein, Muscle & Women: New Science on Menopause & Body Composition - Dr. Arny Ferrando

Dr. Arny Ferrando, a leading researcher in muscle physiology and aging, explains why perimenopause is a turning point for whole-body protein balance. He discusses how muscle loss accelerates in midlife, why protein quality and dosing matter, and the importance of pairing protein with movement. New research on animal vs plant proteins and concerns about lean-mass loss with weight-loss drugs are also covered.
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Jan 30, 2026 • 38min

Creatine, Fat Cells & Body Recomposition: New Science You Haven't Heard — Dr. Scott Forbes

Most people think creatine only affects muscle strength and performance. But what if creatine also plays a role inside fat cells themselves—and could subtly influence fat loss and body recomposition? In this episode of the Optimal Protein Podcast, Vanessa Spina I recaps the key takeaways from the interview with Dr. Scott Forbes, focusing on fat loss, body recomposition, muscle preservation, protein intake, creatine supplementation, sleep, and aging. This episode breaks down brand new research on how different training modalities, recovery, and evidence-based supplements influence fat loss and body composition—and why scale weight alone is a poor marker of fat loss success. 🧠 IQBAR – Try the Ultimate Sampler Pack: IQBARs, IQMIX, and IQJOE! Text VANESSA to 64000 for a 20% off discount code BOOST YOUR COLLAGEN & ELASTIN with RED LIGHT THERAPY! Save 20% on all Tone Lux Red Light therapy with the code VANESSA! Learn more about the TONE LUX Crystal red light therapy mask and the brand new accessory the TONE LUX CONTOUR for the neck and décollete Vanessa discusses how using the Tone Device is a proxy for fat loss and autophay on Protein Sparing Modified Fasting (PSMF) days! 👉 Use code VANESSA for 20% off HERE Get my free NEW high-protein keto guide: The Keto Reset eBook Free high-protein keto guide: The Keto Reset eBook 👤 Connect with Vanessa: • Instagram: @ketogenicgirl 📱 Follow @ketogenicgirl for the latest studies and strategies on fat loss and protein optimization 📸 Follow @optimalproteinpodcast for episode visuals and updates 💬 Join the Facebook group: Optimal Protein Podcast Community 🎙 The content in this podcast is for informational purposes only and not nutritional or medical advice. Always consult your healthcare provider before making major dietary or lifestyle changes.
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Jan 26, 2026 • 1h 6min

Body Recomposition vs Weight Loss: What Fat Loss Science Reveals — Dr. Scott Forbes

Timeline Mitopure Gummies — The #1 Urolithin A supplement for energy and healthy aging, now in delicious strawberry gummies. Get 20% off at timeline.com/vanessa Most fat-loss advice focuses on the scale — but what if that's the wrong metric entirely? In this episode, Vanessa Spina is joined by Dr. Scott Forbes, exercise physiologist and professor at Brandon University, whose research challenges many of the assumptions behind traditional weight-loss approaches. Dr. Forbes has authored and co-authored numerous randomized controlled trials and large meta-analyses examining how training style, protein intake, creatine supplementation, sleep, and aging influence fat loss, muscle retention, and metabolic health. Rather than chasing weight loss, this conversation explores what happens when the goal shifts to body recomposition — losing fat while preserving or building muscle — and why that distinction changes everything. In this episode, we explore: Why weight loss and fat loss are not the same thing The surprising differences between cardio, resistance training, and combined approaches Why some people lose weight but stall metabolically How protein and creatine fit into a muscle-centric fat-loss strategy Why fat loss becomes harder with age — and what still works A largely overlooked factor that influences where fat is stored If you've ever done "everything right" and still felt stuck, this episode offers a science-backed reframe that may completely change how you approach fat loss. 👉 Subscribe, rate, and review the Optimal Protein Podcast to support the show and help bring you more evidence-based conversations on fat loss, protein, and muscle-centric nutrition. Get 20% off the Tone Device to try on a PSMF Day! Shop the collection HERE and use the code VANESSA Get delicious high protein meal recipes! Connect with Vanessa on Instagram @ketogenicgirl 🔴 Tone LUX Red Light Therapy Get 20% off the Tone LUX Crystal Red Light Therapy collection including the Crystal Mask and accessories the with the code VANESSA HERE Follow @optimalproteinpodcast on Instagram to see visuals and posts mentioned on this podcast. Link to join the Facebook group for the podcast 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.
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Jan 23, 2026 • 46min

The Fat Loss Hormone: New Science on Leptin + a 7-Day Leptin Reset Protocol

Skip to the start of the recap: 13:41 In today's Friday solo episode of The Optimal Protein Podcast, Vanessa breaks down the science of leptin — the hormone that determines whether your body will burn fat or protect it. Leptin isn't just about appetite. It's a metabolic permission signal, and when leptin signaling is disrupted, fat loss can stall even in a calorie deficit. 🧠 IQBAR – Try the Ultimate Sampler Pack: IQBARs, IQMIX, and IQJOE! Text VANESSA to 64000 for a 20% off discount code Vanessa explains how sleep, circadian rhythm, and light exposure affect leptin, why dieting can feel harder than it should, and walks you through a practical 7-Day Leptin Reset Protocol designed to reduce hunger, improve satiety, and make fat loss feel easier. This episode connects leptin science with protein-forward nutrition, calories in vs. calories out, resistance training, and circadian alignment for sustainable fat loss. BOOST YOUR COLLAGEN & ELASTIN with RED LIGHT THERAPY! Save 20% on all Tone Lux Red Light therapy with the code VANESSA! Learn more about the TONE LUX Crystal red light therapy mask and the brand new accessory the TONE LUX CONTOUR for the neck and décollete Vanessa discusses how using the Tone Device is a proxy for fat loss and autophay on Protein Sparing Modified Fasting (PSMF) days! 👉 Use code VANESSA for 20% off HERE Get my free NEW high-protein keto guide: The Keto Reset eBook Free high-protein keto guide: The Keto Reset eBook 👤 Connect with Vanessa: • Instagram: @ketogenicgirl 📱 Follow @ketogenicgirl for the latest studies and strategies on fat loss and protein optimization 📸 Follow @optimalproteinpodcast for episode visuals and updates 💬 Join the Facebook group: Optimal Protein Podcast Community 🎙 The content in this podcast is for informational purposes only and not nutritional or medical advice. Always consult your healthcare provider before making major dietary or lifestyle changes.
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Jan 19, 2026 • 1h 13min

Light, Leptin & Fat Loss: How Circadian Biology Controls Metabolism — Dr. Catherine Clinton

Timeline Mitopure Gummies — The #1 Urolithin A supplement for energy and healthy aging, now in delicious strawberry gummies. Get 20% off at timeline.com/vanessa In this episode, I'm joined by Dr. Catherine Clinton to explore how circadian biology, light exposure, and cellular electrical charge regulate metabolism, hormones, and fat loss — often beyond calories alone. We discuss how morning light impacts leptin signaling, insulin sensitivity, cortisol, and melatonin, why modern indoor living disrupts metabolic health, and how maintaining a strong negative cellular charge is critical for mitochondrial function. We also cover red and infrared light therapy, optimal timing, metabolic benefits, and key considerations during pregnancy — plus how to integrate protein intake, calories in vs. calories out, and resistance training with circadian alignment for sustainable fat loss. Topics include: Light exposure and leptin signaling Circadian rhythm and fat loss Cellular charge and mitochondrial health Grounding and infrared light Red light therapy timing and pregnancy considerations Balancing calories, protein, and training with circadian biology 🔗 Dr. Catherine Clinton's book Optimize: drcatherineclinton.com/optimize Get 20% off the Tone Device to try on a PSMF Day! Shop the collection HERE and use the code VANESSA Get delicious high protein meal recipes! Connect with Vanessa on Instagram @ketogenicgirl 🔴 Tone LUX Red Light Therapy Get 20% off the Tone LUX Crystal Red Light Therapy collection including the Crystal Mask and accessories the with the code VANESSA HERE Follow @optimalproteinpodcast on Instagram to see visuals and posts mentioned on this podcast. Link to join the Facebook group for the podcast 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.
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Jan 16, 2026 • 38min

Lose Fat Without Losing Muscle, PSMF VS Low Calorie, Protein Quality, Seed Oils vs Butter & Recovery Science —Recap of Dr. Nick Barringer

Skip to the start of the recap: 11:40 In today's solo recap, Vanessa unpacks the most important takeaways from her conversation with Dr. Nick Barringer—former U.S. Army officer, researcher, and Registered Dietitian—whose work with tactical athletes and elite military populations reveals what really happens to the body during fat loss, stress, and recovery. This episode explores why so many people lose muscle when dieting, how PSMF and ketosis fundamentally change the equation, and what most fat-loss advice gets wrong. 🧠 IQBAR – Try the Ultimate Sampler Pack: IQBARs, IQMIX, and IQJOE! Text VANESSA to 64000 for a 20% off discount code You'll Discover: Why cutting calories alone often backfires What makes PSMF different from standard low-calorie dieting The overlooked role of protein quality—not just protein quantity What elite military research reveals about recovery and resilience The truth about seed oils vs butter when you look at human data Why collagen may support more than just joints and skin The most common mistakes women make when trying to get lean If you're working hard but not seeing the results you expect—or you're tired of fear-based nutrition rules—this episode will change how you think about fat loss, muscle, and recovery. BOOST YOUR COLLAGEN & ELASTIN with RED LIGHT THERAPY! Save 20% on all Tone Lux Red Light therapy with the code VANESSA! Learn more about the TONE LUX Crystal red light therapy mask and the brand new accessory the TONE LUX CONTOUR for the neck and décollete Vanessa discusses how using the Tone Device is a proxy for fat loss and autophay on Protein Sparing Modified Fasting (PSMF) days! 👉 Use code VANESSA for 20% off HERE Get my free NEW high-protein keto guide: The Keto Reset eBook Free high-protein keto guide: The Keto Reset eBook 👤 Connect with Vanessa: • Instagram: @ketogenicgirl 📱 Follow @ketogenicgirl for the latest studies and strategies on fat loss and protein optimization 📸 Follow @optimalproteinpodcast for episode visuals and updates 💬 Join the Facebook group: Optimal Protein Podcast Community 🎙 The content in this podcast is for informational purposes only and not nutritional or medical advice. Always consult your healthcare provider before making major dietary or lifestyle changes.
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Jan 12, 2026 • 1h 6min

How To Lose Fat Without Losing Muscle, Seed Oils vs Butter, Surprising New Research on Collagen for Mood & Recovery — Dr. Nick Barringer

Timeline Mitopure Gummies — The #1 Urolithin A supplement for energy and healthy aging, now in delicious strawberry gummies. Get 20% off at timeline.com/vanessa In this episode of the Optimal Protein Podcast, Vanessa is joined by Dr. Nick Barringer, former U.S. Army officer, researcher, Registered Dietitian, and Chief Academic Officer at Lionel University. Dr. Barringer has led cutting-edge research on protein intake, recovery, and resilience under extreme physical and psychological stress, working with tactical athletes including Army Rangers, Navy SEALs, and West Point cadets. This conversation goes far beyond the military. Dr. Barringer breaks down how women and everyday high performers can apply the same evidence-based strategies to lose fat without losing muscle, recover more effectively, and avoid the biggest pitfalls of aggressive dieting. Together, Vanessa and Dr. Barringer cut through fear-based nutrition messaging and explore what human research actually shows about protein intake, recovery, seed oils, supplements, and collagen. Get 20% off the Tone Device to try on a PSMF Day! Shop the collection HERE and use the code VANESSA Get delicious high protein meal recipes! Connect with Vanessa on Instagram @ketogenicgirl Get 20% off the Tone LUX Crystal Red Light Therapy collection including the Crystal Mask and accessories the with the code VANESSA HERE Follow @optimalproteinpodcast on Instagram to see visuals and posts mentioned on this podcast. Link to join the Facebook group for the podcast 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.

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