I don't understand why these companies even do these analyses . It has been proven over and over again that they are pointless, whatever the outcomes, the results are going to be ignored in the name of profits. I think that these companies should be obliged to subsidise independent, reviewable and verifiable research, for example from Universities or government run labs.
I get, secrecy, and I am OK if some details, for example about production and formulas, may be made available only under NDAs, but that's as much as that. The rest, especially health effects, should be under public scrutiny.