According to the FDA’s legal definition, a drug is anything that “diagnoses, cures, mitigates, treats, or prevents a disease.”
The problem with this definition is that there are numerous substances, as readily available and benign as found on our spice racks, which have been proven by countless millennia of human experience to mitigate, prevent and in some cases cure disease, and which cannot be called drugs according to the FDA.
How can this be? Well, the FDA has assumed for itself Godlike power, requiring that its official approval be obtained before any substance can legally be used in the prevention and treatment of disease.
The FDA’s legal-regulatory control therefore is totalitarian and Napoleonic in construct; what it does not explicitly permit as a medicine is implicitly forbidden.