In sedentary individuals, glucose disposal is limited. Skeletal muscle—your largest glucose sink—is metabolically quiet at rest, taking up just 2–3g/hr. If you’re not training, glycogen stores are likely full, and excess carbs have nowhere to go. In contrast, trained individuals with more muscle mass can dispose of dramatically more glucose. Under high insulin conditions (e.g., post-meal or during exercise), trained athletes can clear 50–60g of glucose per hour. On a daily basis, the brain uses