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In this powerful second interview, Dr. Latt Mansor returns to the podcast to share his personal 20+ lb fat loss transformation—and how he used ketones and strategic carb re-feeds to break through stubborn plateaus, curb hunger, and preserve lean muscle mass.

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We dive into:

• How to use ketones to improve fat loss quality (not just scale weight)
• Why Dr. Mansor says ketones helped him “lose fat without losing muscle”
• How carb re-feeds helped him overcome plateaus and support metabolic flexibility
• How ketones support appetite control, recovery, and training performance
• A new study showing ketones boost sprint output and reduce fatigue
• Ketones vs. GLP-1 drugs like Ozempic—how they compare for appetite suppression
• Dosing protocols for fat loss, fasting, and late-night cravings
• How ketones improve oxygen delivery, red blood cell production, and reduce cortisol
• The science behind ketones reducing muscle protein breakdown and supporting performance
• Ketones and the brain: supporting focus, anxiety, ADHD, and GABA signaling

If you’ve hit a fat loss plateau—or want to preserve muscle while losing fat—this episode is packed with cutting-edge science and tools on how to use exogenous ketones and strategic carbs to support metabolic health, performance, and sustainable results.

Connect with Vanessa on Instagram @ketogenicgirl

Free High-Protein Keto Guide

Get 20% off on the Tone LUX Crystal Red Light Therapy Mask or the Tone Device breath ketone analyzer at https://ketogenicgirl.com with the code VANESSA

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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Today’s solocast is all about Protein-Sparing Modified Fast (PSMF) days — how I’ve been using them in my own fat loss journey, how my approach differs from the traditional PSMF, and what the latest research says about PSMF, refeeds, and protein intake for protecting lean mass.

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I’ll be sharing:

• Exactly how I structure PSMF days for myself, including my research based updates on the method
• How I base my approach on cutting-edge research, including the brand-new 2025 meta-analysis on protein intake and lean mass preservation during fat loss
• My personal results so far — how much weight I’ve lost since starting August 1, how it’s affecting my body composition, and what’s working best for me
• The latest studies on PSMF and refeed protocols: do refeeds really help with fat loss or just with muscle preservation and diet fatigue?
• Why pushing protein higher during a cut is “muscle insurance” and what the evidence says is the sweet spot for most women and men

If your goal is fat loss without losing muscle, this episode is your blueprint.

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👤 Connect with Vanessa:

• Instagram: @ketogenicgirl

• 🔗 Learn more about the TONE Breath Ketone Analyzer — 20% OFF with code VANESSA

• Tone Collagen

📱 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.

Content Note / Trigger Warning: The first two-thirds of this episode focus on Maria Emmerich’s expertise in helping thousands of people who are overweight, obese, or struggling with metabolic health to lose weight and dramatically improve their health and lives. In the last third of the interview, Maria shares her very recent personal experience with struggling with restrictive dieting, and her courageous journey of weight regain. Please listen with care if these topics around disordered eating may be sensitive or triggering for you. See *RESOURCE below if you or someone you care about needs support.

Unlock sharper focus and support long-term brain health with Ketone-IQ—clean brain fuel for deep work, mental clarity, and sustained energy with no crash. Get 30% off your subscription, plus a free gift with your second shipment at Ketone.com/vanessa.

Today’s guest is Maria Emmerich, internationally renowned nutritionist, best-selling author, and an expert in her version of integrating 1-2 Protein Sparing Modified Fast Days (PSMF Days) in a week to create a weekly caloric deficit while protecting muscle and metabolism, including re-feed days to balance out the week.

In this episode, we cover:

• What PSMF Days are and how they differ from the sugar diet or fasting
• How PSMF Days preserve lean muscle while accelerating fat loss
• The role of stall foods like nuts, dairy, and nut flours in holding back fat loss
• Client strategies for satiety, electrolytes, and exercise integration
• The science behind metabolic adaptation, and refeeds
• Why higher protein intake and supplements like creatine are key for recomposition
• Maria’s personal story of becoming too lean, regaining weight, and how it reshaped her coaching philosophy

This episode is packed with practical strategies from Maria’s decades of experience helping people transform their health — and also offers a very candid look into her own personal journey.

IQBAR is offering my podcast listeners 20% OFF all products, plus FREE shipping! IQBARs are packed with plant protein, fiber, and brain nutrients like Lion’s Mane and omega-3s, keto-friendly, low in sugar, gluten-free, dairy-free, and soy-free. To claim your discount, just text VANESSA to 64000. That’s VANESSA to sixty-four thousand. Message and data rates may apply. See terms for details.

NEW! Support your strength and muscle goals with PUORI Creatine+ — a clean, effective creatine monohydrate supplement enhanced with magnesium and vitamin B12. Get 20% off at puori.com/VANESSA

Connect with Vanessa on Instagram @ketogenicgirl

Free High-Protein Keto Guide

Get 20% off on the Tone LUX Crystal Red Light Therapy Mask or the Tone Device breath ketone analyzer at https://ketogenicgirl.com with the code VANESSA

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.

*RESOURCE: If you are in the United States and you or someone you love is struggling with disordered eating, support is available. You can call the National Eating Disorders Association (NEDA) Helpline at 1-800-931-2237 or visit nationaleatingdisorders.org for resources.