Why Your Body Can’t Burn Sugar and Fat at the Same Time: Understanding the Randle Cycle

Your body was never designed to burn sugar and fat at the same time. The Randle cycle explains why one fuel always dominates—and why modern carb-heavy eating keeps fat burning locked away. Learn how metabolic flexibility works, why fat is the body’s sustainable energy source, and how lowering carbs can restore balance, improve health, and reduce the risk of obesity and metabolic disease.