The dandelion greens contain extremely important vitamins and minerals such as vitamin B6, thiamine, riboflavin, vitamin C, iron, calcium, potassium, folate, magnesium and manganese. They may contribute up to 535% of the suggested daily intake of vitamin K, not to mention over 110% of the recommended daily intake of vitamin A. It is believed that some of its flavonoids such as zeaxanthin and cryptoxanthin have specific healing properties. Zeaxanthin seems to provide protection for the retina when confronted by the sun's UV rays, while cryptoxanthin can potentially defend the body against the development of mouth and lung cancer cells.