Time Carbs After Exercise Being that your glycogen stores are depleted during intense exercise, timing a higher carbohydrate meal within the 2-3 hour window post-exercise can mean you burn carbs more efficiently and refill your glycogen stores.Click to see full answer. Also asked, do you burn carbs during exercise?During intense exercise, your body burns through roughly 60 grams of carbohydrates per hour, Layman explains. And, according to research published in Sports Medicine, carbohydrate supplementation can significantly improve high-intensity interval workout performances. And better performances mean better caloric burns.Beside above, what do you burn first when exercising? Exercise lasting from 10 seconds to several minutes uses predominantly glucose in the form of pyruvate, and if the exercise is intense enough, in the form of lactate. After several minutes of work, the body will begin to burn fats for energy use. Share This: The body will burn sugars first, always. Then, how many carbs does your body burn a day? Carbohydrates 600 calories 150 g Proteins 450 calories 112 g Fats 450 calories 50 g How many carbs do you burn running?During a training run or competition, aim for 40-60 grams of carbohydrate per hour (120-240 calories/hour) after that first hour of running. Most carbohydrate energy products (Gu’s, gels, chomps, etc.)