The discipline of<unk>  is vaguely defined by its proponents. Oncologist David Gorski has written that the vagueness is a deliberate tactic that makes<unk>  difficult to challenge, but that in general its practice centers on unnecessary and expensive testing procedures performed in the name of "holistic" health care. Proponents of<unk>  oppose established medical knowledge and reject its models, instead adopting a model of disease based on the notion of "antecedents", "triggers", and "mediators". These are meant to correspond to the underlying causes, the immediate causes, and the particular characteristics of a person's illness respectively. A<unk>  practitioner will devise a "matrix" from these factors which acts as a basis for treatment. Treatments, practices, and concepts will generally be those not supported by medical evidence.<unk>  practitioners claim to diagnose and treat conditions that have been found by research studies to not exist, such as adrenal fatigue and numerous imbalances in body chemistry. Despite lacking evidence or studies to back up his claim, Joe Pizzorno, a major figure in<unk> , purports that 25% of people in the United States have heavy metal poisoning and need to undergo detoxification. Scientists state that claimed detox supplements are a waste of time and money.
Functional medicine
Allopathic medicine
Exercise medicine
Graphic medicine
Narrative medicine
Herbal medicine
Anthroposophic medicine
Conservation medicine