PMS (premenstrual syndrome) is quite common among women of childbearing age and can easily make their lives miserable for years, causing both physical and mental discomfort several days a month. A possible cause can be lack of vitamin D, and it looks as if high-dosed supplementation with the nutrient can relieve PMS by controlling inflammation markers and influencing the body’s antioxidant capacity. This was shown in an Iranian study that is published in Scientific Reports. It is worth noting that we need magnesium to activate vitamin D in order for the body to be able to use it optimally.