Dietary supplements are fully regulated by the FDA. I find it Independence Day 4th of July America shirt that you’d think otherwise. The FDA’s authority to regulate supplements goes back at least half a century. I was part of a dietary supplement company for a few years back in 1979. So my statement is based on personal experience. At that time, FDA regulations were longstanding. The FDA has full regulatory authority to shut down any vitamin manufacturer that does not put in the product the ingredients and amounts on the label. If they choose not to do so, that’s not because they do not have the regulatory authority to act.