I believe medical science is largely corrupt. Atleast in such scenarios where applicable: When corps pay for studies until they get the odd one out that shows the result that's desired so you can sell your product. All the while hiding the other studies showing a complete opposite, buried /destroyed what have you. That's when it's turned into pseudoscience. I think this a pretty common practice too. Hence why a lot of studies can't be replicated. It's not that they can't, they just have to keep doing it until they get the same off conclusions.