Not All Calories Are Equal—Here's Why Your Diet Failed

Obesity, metabolism, weight loss, PCOS, menopause, insulin resistance, and ultraprocessed foods are far more connected than most people realize. In this video, Dr. Evan Nadler explains why the calories-in-calories-out model fails so many people and why weight gain is not simply about discipline or math.

We break down the science behind the hypothalamus, metabolic adaptation, and why your body actively fights weight loss by slowing metabolism. Dr. Nadler also explores how conditions like PCOS, menopause, mental health disorders, and even medications can dramatically affect body weight and metabolic health, even when diet and exercise stay the same.

This conversation challenges the outdated narrative that obesity is caused by laziness or lack of willpower. Instead, it reveals the complex biology driving weight regulation and why obesity treatment requires a far more personalized and compassionate approach.

If you've ever wondered why some people struggle to lose weight despite doing “everything right,” this video will completely change how you think about obesity and metabolism.

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