Nourished Fasting, mTOR and Autophagy with Dr. William Hsu

Weight Loss

Fasting promotes fat-driven weight loss while preserving muscle mass. William Hsu explains that prolonged fasting elevates stress hormones like growth hormone, which helps maintain lean body mass. This method contrasts with low-calorie diets that often result in muscle loss. David Jockers adds that fasting lowers IGF-1 levels, signaling cells to take a break from constant growth.

When we're fasting, we're elevating growth hormone, which helps preserve lean body mass, bone tissue, muscle tissue, but we're suppressing that IGF-1.

--- David Jockers

This combination of effects makes fasting an effective strategy for sustainable weight loss and overall health improvement 1.

   

Cell Health

Fasting significantly impacts cellular health through processes like autophagy and stem cell production. William Hsu describes how the body shifts into fat burning by the second day of fasting, targeting visceral fat and initiating autophagy by the third day. This cellular cleansing process removes old, damaged cells and promotes the production of new, healthy cells.

The body starts breaking down fat for fuel, and most of the cells can utilize fatty acids as an energy source. It's a really great energy source, very energy efficient, very clean.

--- David Jockers

This cycle of depletion and refeeding enhances mitochondrial function and overall cellular health 2 3.

   

Mental Clarity

Fasting also boosts mental clarity and cognitive function. William Hsu notes that fasting increases energy and focus, likening it to the heightened alertness seen in animals during hunting. David Jockers emphasizes that ketone production during fasting provides a clean, efficient energy source for the brain, enhancing mental performance.

A lot of people go through these periodic fasting, these prolonged fasting, they have increased energy, they have mental clarity.

--- William Hsu

This mental boost is one of the key benefits that make fasting a valuable practice for overall well-being 1 4.

   

Behavior Change

Fasting can lead to significant behavioral changes and a healthier relationship with food. William Hsu explains that prolonged fasting helps break food addictions and resets the body's chemistry. After a fasting period, people often feel motivated to adopt healthier eating habits.

After five days, the most common question people ask is, Doctor Xu, what do I eat now? Because I've gone through this journey, I felt better. I know that I had abused my body before. Now I'm ready to make a change.

--- William Hsu

This shift in mindset can lead to long-term improvements in diet and lifestyle 1 4.

   

Research

Ongoing research continues to uncover new benefits of fasting. William Hsu mentions that their company is running 17 clinical trials globally to explore fasting's impact on various health conditions. David Jockers highlights the need for more research to understand when autophagy starts and how metabolic flexibility affects fasting outcomes.

We currently have 17 clinical trials that we're running all around the globe in various health interests.

--- William Hsu

These efforts aim to deepen our understanding of fasting and bring its benefits to a broader audience 5 4.