Eating more carbs doesn't make your muscles grow bigger if you're lifting weights.

Eating more carbs doesn’t make your muscles grow bigger when you’re already getting enough protein and calories — your muscles respond more to lifting weights than to how many carbs you eat.

For people who are already trained, changing the amounts of carbohydrates and fats they eat—while keeping total calories and protein the same—does not lead to meaningful differences in muscle growth over eight weeks.

When doing strength training, consuming more protein leads to greater muscle growth than consuming the same amount of calories from carbohydrates or fats.

Whether you eat a lot of carbs or very few, as long as you're getting enough calories and protein, your strength and muscle growth won't be different after 3 months of lifting weights.

Whether you eat a lot of carbs or very few for months, your strength and muscle growth won’t change — as long as you’re eating enough total calories and protein.