Jamu is a traditional Indonesian medicine made from roots, leaves, fruits, flowers or barks of indigenous plants.

It is particularly popular among the Javanese although it recently gained popularity in Asia, Europe and the Middle East. It is used not only to cure illness, but also as health care, beauty care and beverages.

It is believed that the tradition of Jamu started on the seventeenth century Mataram empire and the secret to preparation was passed on from generations by word of mouth. Jamu can be consumed as drink or applied externally as "lulur".

Jamu preparation has undergone significant improvement through pharmaceutical grade processing. The consumption of Jamu has now becoming more popular worldwide.