If you don’t eat enough carbs, you’ll fatigue sooner. Intense exercise like heavy strength training uses almost entirely carbohydrate for fuel.(1,2) If You Lift Weights, You Should Eat More Carbs Here’s why carbs improve your performance in the gym.
Setting your carbohydrate intake will only take a few minutes, yet it could save you weeks or months of effort. You’ll have to diet for longer to get lean, and it will take longer to get the body you want. If you eat too many carbs (calories), you’ll put on more fat than you should. Basically, some of your time in the gym will be wasted.
If you don’t eat enough carbohydrate to fuel your training, you won’t build as much muscle. Now it’s time to set your carbohydrate intake. You know that you’ll never build muscle if you don’t eat properly.