Carbohydrates are your body’s primary energy source, fueling brain function, physical performance, and cellular processes. Our carbohydrate guide covers simple sugars like glucose and fructose, complex carbohydrates including starches and fiber, sugar alternatives for blood sugar management, and the intricate processes of carbohydrate metabolism. Learn about glycemic index and glycemic load, glycogen storage and depletion, insulin sensitivity and resistance, carbohydrate timing for athletic performance, and strategies for optimizing blood glucose control. Whether you’re managing diabetes, maximizing athletic performance, or following a low-carb diet, discover evidence-based carbohydrate strategies for your health goals.