Period extraordinaire Alisa Vitti explains the physiological reason behind craving carbs. When the carb monster sets in, it’s usually because your body needs more B vitamins. She continues by explaining how important it is to have adequate intake of complex carbs to stabilize serotonin and dopamine levels in the brain and help prevent mood swings. To avoid the cravings and PMS symptoms, Vitti recommends eating healthy amounts of cooked quinoa or sweet potato every day during the luteal phase. Vitamin B1 also helps decrease cramping pain and pain associated with tender breasts— sweet celebration.