Fasting for Longevity? The Science Behind Fasting-Mimicking Diets & Healthy Aging

In this episode of Hormone Heroines, we sit down with Renee Fitton, registered dietitian, longevity nutrition expert, and Vice President of Education and Growth at Prolon, to explore the science of fasting-mimicking diets and their potential role in healthy aging.

Renee explains how fasting-mimicking diets are designed to recreate many of the biological effects of prolonged fasting while still allowing individuals to consume specially formulated foods. We discuss how nutrient-sensing pathways influence cellular repair processes and why fasting has become a major area of interest in longevity research.

Throughout the conversation, Renee shares the latest findings on fasting-mimicking protocols, including their potential effects on autophagy, biological age, metabolic health, body composition, and fat loss. She explains how these protocols may help support cellular cleanup, improve markers of health, and promote healthy aging.

We also discuss why muscle preservation is critical during any longevity intervention, especially for women approaching menopause and beyond. Renee shares insights into fasting, stress hormones, menstrual cycles, fertility considerations, and who may or may not be appropriate candidates for fasting-mimicking programs.

Whether you're interested in longevity, healthy aging, nutrition science, or optimizing your metabolic health, this episode offers a fascinating look at one of the most researched approaches in the fasting and longevity space.

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About the Guest:

Renee Fitton, MS, RD, is a registered dietitian specializing in longevity nutrition, fasting science, and metabolic health. She serves as Vice President of Education and Growth at Prolon and is the co-founder of Heali AI. Renee is passionate about translating complex nutrition and longevity research into practical strategies that help individuals optimize their health, improve metabolic function, and support healthy aging through evidence-based nutrition approaches.

Website: https://prolonlife.com/products/dr-talks

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