title: Exercise-induced oxidative stress and dietary antioxidants.
abstract: BACKGROUND
  Overproduction of reactive oxygen and nitrogen species during physical exercise, exercise induced oxidative stress and antioxidant supplementation is interesting and controversial concepts that have been considered during the past decades.
  
  
  METHODS
  In this review, we aimed to summarize current evidence in relation to antioxidant supplementation outcomes during exercise and physical activity. For this aim, we obtained relevant articles through searches of the Medline and PubMed databases between 1980 to 2013. Although major studies have indicated that antioxidants could attenuate biomarkers of exercise-induced oxidative stress and the use of antioxidant supplement is a common phenomenon among athletes and physically active people, there are some doubts regarding the benefits of these.
  
  
  RESULTS
  It seems that the best recommendations regarding antioxidants and exercise are having a balanced diet rich in natural antioxidants and phytochemicals.
  
  
  CONCLUSIONS
  Regular consumption of various fresh fruits and vegetables, whole grains, legumes and beans, sprouts and seeds is an effective and safe way to meet all antioxidant requirements in physically active persons and athletes.
authors.affiliation: Department of Physical Education, Tabriz University of Medical Sciences, Tabriz, IR Iran.
authors.forename: Abbas
authors.initials: A
authors.lastname: Yavari
authors.affiliation: Department of Nutrition, Faculty of Health, Qazvin University of Medical Sciences, Qazvin, IR Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Javadi
authors.affiliation: Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran.
authors.forename: Parvin
authors.initials: P
authors.lastname: Mirmiran
authors.affiliation: Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Bahadoran
keywords: Antioxidant; Exercise-Induced; Glutathione; Minerals; Oxidative Stress; Reactive Oxygen Species; Vitamin C; Vitamin E