Before revision: Functional medicine (FM) is a form of [[alternative medicine]that looks for the root cause of illnesses by fixing nutritional imbalances It has been described as pseudoscience, quackery, and at its essence a rebranding of complementary and alternative medicine.
After 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> and at its essence a rebranding of complementary and alternative medicine.