With the overwhelming amount of information out there about diet, nutrition, weight loss, and fitness, it can sometimes feel even harder to decide what the right choice actually is. Every day we hear about new diets, conflicting nutrition advice, and endless strategies promising better health, more energy, and longer life.
So the question remains: Should we eat… or should we fast?
For many people, fasting can sound extreme or even unhealthy. But the truth is, fasting is far from a modern trend. In fact, it’s a practice that is as old as the human species itself. For thousands of years, our ancestors naturally went through cycles of feast and famine, and our bodies evolved powerful biological mechanisms that allowed us not only to survive those periods without food—but often to become stronger and healthier because of them.
Today, science is rediscovering what ancient traditions have practiced for centuries: that strategic fasting can activate powerful processes in the body that support healing, longevity, and optimal health.
In this episode, we bring you a comprehensive, science-backed guide to help answer the question for yourself: To eat or not to eat?

Joining us is Dr. William Hsu, the Chief Medical Officer of L-Nutra, the company behind the ProLon Fasting Mimicking Diet. Dr. Hsu is a leading expert in metabolic health and longevity research, and in this conversation he unpacks the fascinating science behind fasting—how it works, why it can be beneficial, and how modern approaches like fasting-mimicking diets are designed to safely activate the same powerful biological pathways.
Together, we explore how fasting influences metabolism, cellular repair, inflammation, and the body’s natural ability to regenerate and heal. Dr. Hsu explains how this ancient survival mechanism has become one of the most exciting frontiers in modern health and longevity research.
If you’ve ever wondered whether fasting is right for you, how it impacts your body, or how to use it safely and effectively, this episode provides the clarity and scientific insight you’ve been looking for.
Only here on the Thrive State Podcast, join us as we dive into the fascinating science of fasting and help you decide:
To Eat or Not to Eat — Hacking the Amazing Benefits of Fasting with Dr. William Hsu.
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