IRCT2017031132417N3 IRCT 2017-10-17 Vice Chancellor for research of Urmia University of Medical Sciences The effect of diet enriched with whole grains and grains with bran on severity of premenstrual syndrome symptoms in nurses The effect of diet enriched with whole grains and grains with bran on severity of premenstrual syndrome symptoms in nurses 2016-10-22 anticipated 100 Complete https://irct.ir/trial/25259 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. N/A Pre Menstrual Syndrome. Intervention 1: In this study, people in the intervention group after become aware of foods that are considered as whole grains,for 3 months will change their daily intake of cereals from refined grain to whole grains or grains with bran. in order to provide at least four serving of whole grains, one loaf of 120 volumes of lavax bread is given free of charge to them daily And they will be asked to not change their physical activity during this time. Intervention 2: In this study, individuals in the control group were asked to take their usual daily intake of cereals for 3 months and not to change their physical activity.