As other people have noted, there is a symbiotic relationship between Orrin Hatch and the supplements industry. https://www.nytimes.com/2011/06/21/us/politics/21hatch.html Many of the companies involved in supplements manufacture are based in Utah, and many of the MLM companies involved in supplement distribution are based in Utah, most of the employees would be Mormon and the companies would be Mormon owned just based on probability so there is a captive audience of two Senators and four House members ready to defend the Wild West of supplements in the USA, Senators being able to influence bills to a much greater extent, given that Utah would probably never elect a Democrat to office it's going to take something like a 60-40 Democratic majority in the US Senate for this to ever change.