Dear Editor-in-Chief

Oxidative stress is defined as an imbalance be-tween stress and the available protective elements suggested playing a crucial role in induction of dis-eases. Medicinal plants mostly combat these com-plications with their antioxidant activities. Several preclinical and epidemiological studies have found an inverse association between the consumption of fruits, vegetables and/or grains which generally are high in antioxidants and induction of diseases in humans. Antioxidants are substances that rem-ove, prevent or delay oxidative damage to a target molecule. Therefore, an antioxidant may act to control the level of free radicals to counteract oxi-dative damage (1). There is a lot of evidence on protective and curative effects of medicinal plant