This study with the aim of the definition of The effect of supplementation with iron alone and combined with the docosahexaenoic acid on iron deficiency anemia index and oxidative stress carried in a Randomized placebo-controlled double-blind Clinical trial In a period of 21 months in women15-45 years of age with iron deficiency anemia. Among of patients were willing to cooperate, Background, anthropometric, biochemical and dietary intake and physical activity will be assessed.to And if having Hb> g / dl 12, HCT <35% and transferrin saturation less than 15% and don’t have diabetes, thalassemia, history of peptic ulcer disease or malabsorption and lack of blood transfusions in the past 2 months, 80 patients are enrolled . Of the two groups receiving supplemental DHA + ferrous sulfate or placebo + ferrous sulfate into each day, 1 capsule of 500 mg DHA or placebo, with a tablet inserted sulfate contains 50 mg of elemental iron for 12 weeks taking . From 24-hour dietary recalls at baseline and end of study to be taken daily intake of calories, carbohydrates, fat, protein, fiber and antioxidants, especially vitamins A, C and E, beta carotene, zinc, selenium, iron, copper, Sodium, potassium and dietary fat type is specified. The study measured levels of oxidative stress, catalase, MDA, triglycerides and HDL can be measured and compared in the two groups.