You've tried everything. Eaten less, exercised more, counted calories. But the weight won't budge. What if the problem was never your lack of willpower — but a fuel switch that got stuck?
Topic
Metabolic Flexibility
Metabolic flexibility is your body's ability to efficiently switch between burning carbohydrates and burning fat as fuel sources, depending on what's available. A metabolically flexible person can easily tap into fat stores when carbs are limited, while someone with insulin resistance stays locked in sugar-burning mode and struggles when glucose isn't constantly available. This inflexibility leads to constant hunger, energy crashes, and difficulty losing weight. Reducing carbohydrates and practicing intermittent fasting are proven ways to restore metabolic flexibility.