Root chicory contains volatile oils similar to those found in plants in the related genus Tanacetum which includes Tansy, and is similarly effective at eliminating intestinal worms. All parts of the plant contain these volatile oils, with the majority of the toxic components concentrated in the plant?s root. It is well known for its toxicity to internal parasites. It is variously used as a tonic and as a treatment for gallstones, gastro-enteritis, sinus problems and cuts and bruises. Inulin, the dietary fiber found in Chicory, finds application in diabetes and constipation. Traditionally, chicory juice was used as part of a remedy for headaches.

The flower was used as a treatment in Germany, and is recorded in many books as an ancient German treatment, for everyday ailments. The Romans used chicory as a vegetable or in salads. The root was also ground and used as a caffeine-free coffee substitute.

Chicory is used for high blood pressure, heart failure, loss of appetite, upset stomach, constipation, liver and gallbladder disorders, cancer, and rapid heartbeat.