A bowl of fat–free or low–fat yogurt can help balance your calcium levels during your menstrual cycle. Researchers have found that some women have lower blood levels of calcium around the time of ovulation, and adding calcium can make a big difference when dealing with PMS symptoms that are related to mood and bloating. It’s always important for women to ensure they’re eating enough calcium–rich foods, but around the time of your period, there’s even more incentive.