No Good Science Is Not Surprising
The purveyors of these products are solely interested in selling products. The buyers of these products, for the most part, don't have the background to understand what constitutes a valid, credible study. However, if a celebrity says it's good stuff, then they think it is good. Why it never occurs to most people that these celebrities are getting paid to tout the product escapes me. They don't need, and probably can't afford to do a proper study. The kinds of baloney that most people will believe without any objective reason for that belief is what enabled P.T. Barnum to make a living and keeps the ad dollars flowing in to "professional" wrestling. Carl Sagan said something to the effect that most people need to improve their "baloney meter".
