Key Topics & Timestamps
- 00:00 – 02:00: Introduction to metabolic health and chronic disease
- 02:00 – 06:00: Why traditional calorie restriction fails
- 06:00 – 12:00: The hormonal model of weight gain
- 12:00 – 18:00: Understanding insulin resistance
- 18:00 – 25:00: What intermittent fasting really does to the body
- 25:00 – 32:00: Fasting vs. dieting: key differences
- 32:00 – 40:00: Practical fasting strategies for beginners
- 40:00 – 50:00: Common myths about fasting
- 50:00 – End: Long-term health benefits and how to get started
Introduction: A New Way to Think About Health
As a physician who has spent decades working with women navigating hormonal imbalances, metabolic challenges, and the transitions of midlife, I’ve come to deeply appreciate the power of simple, foundational shifts.
One of the most transformative tools I’ve encountered—and one that continues to gain traction in both functional and conventional medicine—is intermittent fasting.
In this episode, I explore the groundbreaking work and philosophy of Dr. Jason Fung, a leader in the field of metabolic health and fasting. His approach challenges conventional thinking and invites us to reconsider everything we’ve been told about calories, weight loss, and disease.
And what I want to do here is expand on that conversation—so you not only understand intermittent fasting, but feel empowered to apply it in a way that supports your body, your hormones, and your long-term vitality.
The Problem with the “Eat Less, Move More” Model
For decades, we’ve been told that weight loss is simply a matter of calories in versus calories out.
Eat less. Move more.
But if that were truly effective, we wouldn’t be facing global epidemics of obesity, diabetes, and metabolic dysfunction.
What Dr. Fung emphasizes—and what I’ve seen in my own clinical practice—is that this model is incomplete.
Your body is not a simple calorie calculator.
It is a complex hormonal system.
And when we ignore hormones, especially insulin, we miss the root cause of weight gain and metabolic disease.
The Hormonal Truth: It’s About Insulin
At the center of this conversation is one key hormone: insulin.
Insulin is not just about blood sugar—it is a fat-storage hormone.
When insulin levels are chronically elevated, your body is essentially locked in fat-storage mode. You can eat fewer calories, exercise more, and still struggle to lose weight.
This is why so many women, especially in perimenopause and menopause, feel frustrated.
It’s not a lack of willpower.
It’s biology.
And when we begin to lower insulin levels, everything changes.
What Is Intermittent Fasting?
Intermittent fasting is not about what you eat—it’s about when you eat.
It involves cycling between periods of eating and periods of fasting.
Some common approaches include:
- 16:8 (16 hours fasting, 8-hour eating window)
- 24-hour fasts once or twice per week
- Alternate-day fasting
But here’s what’s important:
- Fasting allows your insulin levels to drop.
- And when insulin drops, your body gains access to stored fat for energy.
- This is the metabolic switch that most diets fail to activate.
Why Fasting Works When Dieting Fails
Traditional diets often fail because they keep insulin levels elevated.
Even “healthy” snacks throughout the day can prevent your body from ever entering a fat-burning state.
Fasting, on the other hand, creates space.
Space for your body to:
- Burn stored fat
- Reset insulin sensitivity
- Reduce inflammation
- Activate cellular repair processes
It’s not about deprivation.
It’s about rhythm.
And when you align with your body’s natural rhythms, you begin to see profound changes.
The Role of Insulin Resistance
One of the most important concepts Dr. Fung discusses is insulin resistance.
Over time, frequent eating—especially processed carbohydrates—leads to chronically high insulin levels.
Your cells begin to resist insulin’s signal.
So your body produces even more insulin.
And this creates a vicious cycle.
Fasting helps break that cycle.
By reducing how often you eat, you give your body a chance to restore sensitivity and rebalance.
Intermittent Fasting and Women’s Hormones
Now, as a physician focused on women’s health, I want to add an important layer to this conversation.
Fasting can be incredibly powerful—but it must be done thoughtfully.
Women’s bodies are sensitive to stress, and fasting is a form of metabolic stress.
So we want to approach it in a way that supports—not disrupts—hormonal balance.
Here are a few key principles:
- Start gently (12–14 hour fasts)
- Avoid over-restriction
- Prioritize nutrient-dense meals
- Listen to your body
For many women, especially in midlife, intermittent fasting can improve:
- Insulin sensitivity
- Weight management
- Energy levels
- Brain clarity
But it’s not about pushing harder—it’s about tuning in.
Common Myths About Fasting
Let’s clear up a few misconceptions:
“Fasting slows your metabolism.”
In reality, short-term fasting can increase metabolic rate by boosting norepinephrine.
“You’ll lose muscle.”
When done properly, fasting preserves lean mass—especially when paired with adequate protein and resistance training.
“You’ll be starving all the time.”
Hunger often decreases over time as your body adapts and insulin stabilizes.
Practical Ways to Get Started
If you’re new to intermittent fasting, start here:
-
Stop late-night eating
Give your body a 12-hour overnight fast. -
Gradually extend your fasting window
Move to 14–16 hours if it feels good. -
Focus on real, whole foods
Especially healthy fats and proteins. -
Stay hydrated
Water, herbal teas, and electrolytes are key. -
Be flexible
This is not about perfection—it’s about consistency.
Beyond Weight Loss: The Deeper Benefits
What excites me most about intermittent fasting is not just weight loss.
It’s the deeper healing that happens.
Fasting has been shown to support:
- Cellular repair (autophagy)
- Reduced inflammation
- Improved brain function
- Longevity pathways
This is about aging powerfully.
About creating a body that is resilient, adaptable, and vibrant.
My Perspective as an Integrative Physician
In my work, I always emphasize an integrative approach.
Fasting is not a standalone solution.
It works best when combined with:
- Hormonal balance
- Gut health support
- Stress reduction
- Nutrient-rich nutrition
When we bring all of these elements together, we create a body that is truly “inhospitable to disease.”
And that is the goal.
Listen to the Full Episode
This conversation dives even deeper into:
- The science behind fasting
- Real-world success stories
- Practical strategies for different lifestyles
- How to overcome plateaus
If you’ve ever felt stuck, frustrated, or confused about your health…
This episode will give you clarity—and hope.
Listen on: YouTube | Spotify | Apple Podcast
Q&A
Q: Is intermittent fasting safe for everyone?
A: It’s safe for many people, but not all. Those with certain medical conditions should consult a physician first.
Q: How long should I fast?
A: Start with 12–14 hours and gradually increase based on how your body responds.
Q: Can I drink coffee during a fast?
A: Yes, black coffee is generally fine and may even support fat burning.
Q: Will fasting affect my hormones?
A: When done properly, it can improve hormonal balance—especially insulin.
Q: What should I eat when I break my fast?
A: Focus on whole, nutrient-dense foods with healthy fats, protein, and fiber.
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Disclaimers: The information provided is for educational purposes only and should not be construed as medical advice. Always consult with your healthcare professional before starting any supplement program.
