[MarCylinder]

Chelated supplements are, generally, more bioavailable than their oxidized counterparts because they are bound to nutrients for which you have transporters. Like amino acids, for instance.

Supplements are absolutely regulated. To say otherwise is just ignorant of the law. Those regulations are not well enforced. That is the fault of the US justice department and Congress. The FDA is under-equipped in the way of funding to enforce regulations. And they're dependent on the justice department to actually follow through on enforcement. The justice department is only really interested in enforcement action where harm has occurred.

Amazon can do better, but why are we exclusively placing the onus on them to enforce federal law? Why is the FDA not going after the brands making and selling this shit?