I would argue that a customer's testimony is the best 3rd party endorsement. And, the bigger the customer, the bigger the endorsement. I am going to be more excited when a company like Tyson signs than a university study. You can prove just about anything with a university study.  Look at all the ads on TV all based on some study.  Then look at what they do-one person after another telling the results they got with this amazing product. When I am interested in anything, what do I do? Ask my friends-who do you know that is a good plumber or  whatever?  Anyway, can't help with university studies. My best to you,  Jim