Leaves, roots and seeds are all used. The seed is the most diuretically active. Water retention, urinary infections, also used to help dissolve kidney stones, relieve painful periods and flatulent indigestion. Parsley is rich in iron, minerals and vitamins (especially Vit C).
“It is very important not to mistake hemlock for parsley; but not at all so to believe or not in God. “ (Diderot)