Parsley is high in antioxidants, vitamins A and C, and the chemical apigenin, which may help inhibit the growth of cancer cells several studies have found. It also has been shown to have heart-healthy effects, reducing high blood pressure. A quick way to put this healing herb in your diet is as a chopped garnish, but it can also play a starring role and add great flavor to dishes like this chicken and pork, along with fish.