Liu Chun, a doctor of medicine at the University of Tokyo, said that in spring, we should pay attention to nourishing and protecting the liver, and dandelion is one of the best ingredients to use. Dandelion's medicinal attributes come from its roots, leaves, and flowers. It contains a variety of nutrients, including vitamins A, C, and K, and minerals such as calcium, magnesium, phosphorus, and potassium.