Parsley is a leafy green that is commonly used as an herb. You should always be sure to eat lots of leafy greens (and herbs), and parsley is no different.
The Health Benefits
Consumption of herbs and spices has been shown to improve blood pressure and glucose tolerance, and eating plenty of leafy vegetables tends to have the same health benefits. Like most other leafy greens, parsley comes loaded with vitamins A, C, and K.
Most of us know why we need vitamins A, and C (eyesight and immune system, among other things), but the benefits of vitamin K have only recently been studied. Mark Sisson addressed the recent media hype over vitamin K2, a kind of vitamin K that has gained much attention in the press.