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.

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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.

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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.

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In this highly requested follow-up, Dr. Arny Ferrando returns to the Optimal Protein Podcast to go even deeper into the science of preserving muscle and optimizing body composition. Dr. Ferrando is one of the world’s leading researchers in muscle protein metabolism, with over 35 years of groundbreaking work on essential amino acids, anabolic resistance, and nutrition-exercise interactions.

We kick things off with his perspective on Protein-Sparing Modified Fasts (PSMF) versus water fasting, and the implications each has for fat loss and lean mass preservation. Dr. Ferrando also shares his positive take on collagen supplementation, including how it can support connective tissue health, and weighs in on the potential risks of GLP-1 medications to muscle tissue during rapid weight loss.

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

We kick things off with his perspective on Protein-Sparing Modified Fasts (PSMF) versus water fasting, and the implications each has for fat loss and lean mass preservation. Dr. Ferrando also shares his positive take on collagen supplementation, including how it can support connective tissue health, and weighs in on the potential risks of GLP-1 medications to muscle tissue during rapid weight loss.

The heart of this episode dives into anabolic resistance during menopause. Dr. Ferrando explains why it may not just be about hormones, but also about impaired nutrient delivery to muscle. He describes amino acids as the “signal” and blood flow as the “delivery truck”—a powerful analogy that reveals why exercise is so critical to overcoming anabolic resistance.

We explore practical strategies for women to preserve muscle and improve body composition during midlife and beyond, including:

• Why blood flow and nutrient delivery may matter as much as hormones.

• How red light therapy and blood flow restriction training (BFR) could enhance amino acid delivery and muscle responsiveness.

• His recommendations for EAA dosing, timing, and frequency in peri- and postmenopausal women.

• The role of microvascular health and endothelial function in muscle retention.

• Why free-form EAAs are more efficient than intact protein under calorie restriction.

This conversation is packed with actionable science and myth-busting insights that will help you understand how to protect your muscle, burn fat, and stay strong at every stage of life.

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.