Before revision: Functional medicine (FM) is a form of alternative medicine that looks for the root cause of illnesses by fixing nutritional imbalances URL |access-date=2016-12-02 |website=Science-Based Medicine </ref> alternative medicine that encompasses a number of unproven and disproven methods and treatments.
After revision: Functional medicine (FM) is a form of  alternative medicine that encompasses a number of unproven and disproven methods and treatments.