Disclaimer: These uses have been tested in humans or animals. Safety and effectiveness have not always been proven. Some of these conditions are potentially serious and should be evaluated by a qualified healthcare provider.
A: Strong scientific evidence
B: Good scientific evidence
C: Unclear or conflicting scientific evidence
D: Fair negative scientific evidence
F: Strong negative scientific evidence
This information has been edited and peer-reviewed by contributors to the Natural Standard Research Collaboration.
Natural Standard developed the above evidence-based information based on a thorough systematic review of the available scientific articles. For comprehensive information about alternative and complementary therapies on the professional level, go to www.naturalstandard.com. Selected references are listed below.