The Carbs & Weight Loss Connection: Insulin Resistance, Blood Sugar, Hormones, Thyroid Health, Stress & Metabolic Health | Zane Griggs

The Carbs & Weight Loss Connection: Insulin Resistance, Blood Sugar, Hormones, Thyroid Health, Stress & Metabolic Health

In this episode I'm joined by Zane Griggs to uncover the real connection between carbohydrates, weight loss, and metabolic health. We debunk myths about sugar, insulin resistance, and restrictive diets, showing why carbs are not the enemy—and how they can actually support thyroid function, hormone balance, stress reduction, and fat loss.

Learn how lifestyle factors like chronic stress, poor sleep, processed seed oils, blue light exposure, EMFs, and chronic calorie restriction can contribute to insulin resistance and hormonal imbalance—not carbohydrates. Through a science-backed discussion, Zane explains mitochondrial function, metabolism, and how diet culture and nutrition dogma can lead to metabolic burnout!

We also share personal journeys from strict low-carb and carnivore diets to more balanced, performance-enhancing approaches that restore energy, metabolic flexibility, and long-term health—including optimal thyroid function and hormonal support.

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Key Takeaways:

• What really causes insulin resistance (it’s not carbs or sugar)

• How stress, sleep loss, and lifestyle damage metabolism

• Risks of low-carb and carnivore diets: fatigue, elevated cortisol, and blood sugar spikes

• The role of mitochondria in glucose metabolism and energy production

• Why restrictive diets challenge athletes and active individuals

• Safe ways to reintroduce carbs and rebuild metabolic flexibility

• How to support thyroid function, hormone balance, and overall metabolic health

• The dangers of nutrition dogma and confirmation bias in health culture

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Whether you’re keto, carnivore, plant-based, or somewhere in between, this episode gives you the clarity and context to make informed diet and lifestyle choices that improve weight loss, thyroid health, hormonal balance, performance, and long-term well-being.

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⏱️ Chapters:

00:00 Introduction: The Nuanced Conversation on Carbs

09:42 Understanding Insulin Resistance

17:37 Oxidative Stress & Metabolism

22:49 Mitochondrial Dysfunction & Energy Production

25:09 Symptoms of Elevated Blood Glucose

29:07 Insulin Resistance Explained

33:39 Body Composition & Metabolic Health

39:36 Historical Context of Carbohydrate Consumption

49:35 Blood Sugar Management Nuances

58:15 Dietary Solutions for Insulin Resistance

01:01:50 Carbohydrates & Metabolic Health

01:03:32 Finding Diet Balance

01:05:35 Caloric Needs & Protein Intake

01:09:10 Fat Deficit & Metabolic Health

01:13:08 Diet & Thyroid Function

01:17:37 Context Matters: Personalized Nutrition

01:22:51 Final Thoughts & Experimentation

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*None of the content / statements in this Podcast are Medical or Personal Advice & is not intended to cure, treat, prevent or diagnose any medical condition. All my videos are for Educational & Research purposes only. If you decide to try anything discussed in this video, you agree to do so at your own risk & responsibility*