Parsley is a great source of vitamins A and C and important nutrients with antioxidant properties.Parsley have antibacterial benefits when used as an extract. Parsley contains many powerful antioxidants that can benefit your health.Your body requires a healthy balance of antioxidants and free radicals to maintain optimal health.The fragrant herb is particularly rich in a class of antioxidants known as flavonoids. The two main flavonoids include myricetin and apigenin. The diets rich in flavonoids may lower your risk of conditions, including colon cancer, type 2 diabetes, and heart disease.Furthermore, beta carotene and lutein are two antioxidants known as carotenoids. Many studies associate higher intake of carotenoids with a reduced risk of certain diseases, including lung cancer .Vitamin C also has strong antioxidant effects and plays an important role in supporting immune health and protecting against chronic diseases.