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Ep. 21 - Protein & Longevity: Fueling Strength, Aging Smarter

Health Talk - Your Partner In Health

Release Date: 05/27/2025

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More Episodes

In this episode of Health Talk: Your Partner in Health, Dr. Caitlin Prickett and Jeffery Runyon unpack the science behind protein intake and healthy aging. Whether you're aiming for fat loss, protecting your metabolism, or maintaining your strength through midlife and beyond, protein is essential—especially if you're over 40 or using GLP-1 medications like semaglutide or tirzepatide.

Dr. Prickett shares her clinical insights and personal recommendations on how much protein to consume, when to eat it, and which types of protein support optimal health.

✅ In this episode, you’ll learn:

Why muscle mass declines with age and how to slow that process through protein

Why the RDA for protein is outdated for most adults

Dr. Prickett’s personal recommendation:

“I recommend consuming 1 to 1.5 grams of protein per pound of ideal body weight—especially for those on GLP-1s or anyone 40+ looking to preserve muscle mass and metabolic function.”

Women’s unique protein needs, especially during the luteal phase and after menopause

How to time your protein throughout the day to maximize absorption and muscle protein synthesis

Which proteins Dr. Prickett recommends—including clean, high-quality supplement options

How animal and plant proteins compare, and how to make plant proteins more effective

Supplements and nutrients that improve protein digestion and absorption (like leucine, B vitamins, and vitamin D)

Whether you’re a competitive athlete or simply trying to age well, this episode will give you the tools to fuel your body, build resilience, and protect long-term health with protein.

🧬 Dr. Prickett’s Protein Guidelines Recap:

Target: 1–1.5 grams per pound of ideal body weight

Per Meal: Aim for 25–40g of protein per meal, spread evenly throughout the day

For Women: Increase protein slightly during the luteal phase or perimenopause

For GLP-1 Users: Use shakes or liquid protein for easier digestion; prioritize daily resistance training

Recommended Clean Brands: FlavCity, Truvani, Just Ingredients, Vital Proteins

Avoid: Stevia, gums, natural flavors, and proprietary blends

 

📚 Referenced Clinical Studies:

Muscle Loss & Aging

Janssen I et al. J Am Geriatr Soc. 2002

Cruz-Jentoft AJ et al. Age Ageing. 2010 (PMC6202460)

Harvard Health: Muscle Mass & Aging

Protein Intake Recommendations

PROT-AGE Study Group. J Am Med Dir Assoc. 2013

Bauer et al. ESPEN Guidelines. Clinical Nutrition. 2013

Paddon-Jones et al. Curr Opin Clin Nutr. 2009

Women's Protein Needs

Smith-Ryan AE et al. J Int Soc Sports Nutr. 2021 (PMID: 33794937)

Mallinson R et al. JISSN. 2023 (PMID: 37787091)

Minimum protein needs for older women – 2023 preprint (ResearchGate)

Protein Timing & Utilization

Mamerow MM et al. J Nutr. 2014

JISSN Position Stand. JISSN. 2017

Churchward-Venne TA et al. Nutrients. 2016

Protein Quality & Supplements

Tang JE et al. Am J Clin Nutr. 2009

Van Vliet S et al. J Nutr. 2015

Wilding JPH et al. Obesity. 2022 (semaglutide & lean mass loss)

Vitamin D + protein absorption: Am J Clin Nutr, 2022

Leucine & MPS: Front Nutr. 2023 (PMID: 10761008)