Likely not going to pass with a very pivotal midterm election coming up and campaign season is in full force, unless something or someone does something stupid with one of these supplements between now and Nov 4th. Then, Senators will fly back for a quick vote in order to look good while those challenging them will scream "I agree! Me Too!". Thats politics (and not just in the US either).
That being said, the fact that this bill was brought up means that it is likely not the last time we will see similar legislation. These are the type of bills that get bi-partisan support, which as we all know is a rarity these days.