How does this multivitamin make periods more comfortable?

Iron is a mineral your body uses to make oxygen-carrying proteins that give you energy, help you focus and balance your mood—all of which can be compromised at different points in your cycle. During your period, you can lose anywhere from 3-24 mg of iron every month! This multivitamin helps build-up iron stores and supports mood-balancing neurotransmitters. Plus, vitamin C and B-vitamins including folic acid help build blood, zinc helps ease period cramps, and chaste berry extract supports premenstrual balance.