These times of increased carb intake help prevent the body from slowing the metabolism by dropping carbs, which often creates a calorie deficit, too low. (flippingfifty.com)
The other trick is to drastically increase your carbs consumption one day in the week, taking it to 3 consumed grams of carbs per each pound of bodyweight. (fitnessandpower.com)
In order to gain tolerance, continue by increasing the carbs by 10 grams and the fats by 1 gram in the first week. (fitnessandpower.com)