If you have premenstrual syndrome, there's no need to keep it. There are very many ways possible to control or eliminate PMS, either singly or in combination. These include diet change, supplemental vitamins, minerals, and other nutrients, natural hormone treatment, and candida treatment. Check your natural food store for alternatives to refined sugar. As alcohol can aggravate the same problems as sugar and refined carbohydrate, it should also be eliminated.
Caffeine needs to go, too.
For some women with PMS, food allergy elimination is a major part of PMS symptom elimination. It's not clear why food allergies should cause symptoms at only one time of the month and not others, but so many of the women I've worked with have confirmed this to be so that I've learned to be alert for the possibility of food allergy. If you have allergy symptoms now, have had them in the past, or if members of your family have allergies, consider identifying and eliminating food allergies as part of your overall PMS elimination program. Several nutrients can reduce PMS symptoms. If used together, they can sometimes completely control it.