Like any area, the ethics boards hold experiments to much higher standards than things like surveys
That’s only an implicit answer, and I want to be sure I understand correctly. Do ethics boards forbid trials with diet interventions? Or is the problem only that diet researchers do the wrong things and then oversell their results?
That’s only an implicit answer, and I want to be sure I understand correctly. Do ethics boards forbid trials with diet interventions? Or is the problem only that diet researchers do the wrong things and then oversell their results?
They and the general culture of ‘ethics’ and overrating professional expertise and correlative results forbid trials on the margin.
I don’t see any ‘only’ about the matter.