Will, if we just focus on bodybuilding,
can you tell me for what basic supp ingredients double blind crossover studies have been seriously performed on a representative number of people, testing the ratio of muscle gain vs. fat gain on a bulk resp. fat loss vs. muscle loss on a cut, both with a certain rate of weight change?
I will attempt to answer that question if you answer the question I asked before, you did not answer: What is your background for understanding the methodology of research in the biological sciences? My sense is you have very little to none. That does not make you a bad person, just a person who keeps making stats 101 mistakes, and statements that tell me you lack the required background for any real conversation on the issue. BTW, many of the latest studies on supps can be found on my web site, my blog, etc.
I don't tend to get into debates with physicists about the nature of black holes. Why? Because my physics knowledge is limited and so I defer to those who have the background for understanding the physics (such as it's known) behind black holes.
Also you mentioned that you do your own emperical studies using feedback from your clients.
That is not true. Read carefully what I said, specifically regarding comments between the differences between subjective experimentation vs objective research following proper methodology that is able to account for/control all the variables so we have a high degree of confidence X supp has Y effects.
Feedback from clients and users is not objective research. Now, you can gather good impirical evidence for an effect as your focus has been, and that's fine, but don't mistake it for actual objective research.
What is the result on those basic supp ingredients regarding the mentioned ratio?
Depends on the supp and as it's subjective feedback vs true objective research, I take it all with a grain of salt. If the feedback mirrors the research, all the better. Some times it does not, and then you have to balance the strength and quality of that research with the amount and strength of the feedback, which is another issue...
I admit that I'm not up-to-date with the latest studies, so I would be interested if there actually are studies opposing my experience.