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 is considered ineffective and can be harmful, which raises ethical issues. Naturopaths have repeatedly been accused of being charlatans and practicing quackery.