Naturopathy or naturopathic medicine is a form of alternative medicine employing a wide array of "natural" modalities, including homeopathy, herbalism, and acupuncture, as well as diet (nutrition) and lifestyle counseling. Naturopaths favor a holistic approach with non-invasive treatment and generally avoid the use of surgery and drugs. Naturopathic medicine contains many pseudoscientific concepts and its practice can be ineffective or harmful, raising ethical issues.