A Grade, High Quality, Parsley contains several important nutrients, such as vitamins A,, and C. It's also a good source of the minerals calcium, iron, magnesium, and potassium. Rich in Nutrients Calories: 2. Vitamin A: 12% of the Reference Daily Intake (RDI) Vitamin C: 16% of the RDI. Vitamin K: 154% of the RDI.