“Your brain relies on carbohydrates for energy,” says Tanya Zuckerbrot, MS, RD. “Without them, your brain power will suffer and that midday crash might hit you hard. You might find it hard to focus throughout the day.”
Newgent stresses the importance of eating carbs during active times of the day to fuel working muscles, like pre- or post-workout, for example. In fact, you need more carbs the longer you work out, because increased glycogen in the muscles has been correlated to better performance in strength and endurance exercises.
Mood swings and irritability.