I agree most of this is bullshit. A proper diet should be it and most rec a multivitamin. quality whey is good, but should be cycled. Creatine is good/bad depending on how you use it. Most people are just wasting their time and money on this stuff. My uncle is a sports doc and deals with the questions all the time. Multivitamins may shorten lifespan. Omega-3 research is reasonably solid - so fish oil is probably worth it. Creatine research is also pretty solid for athletic performance. As for the rest? I thought about trying out PAGG stacking, but it is too pricey on a monthly basis for things of doubtable value (sorry Tim, but an n=1 while changing a ton of other factors is not scientific at all). Maybe if they come out with a unified pill that isn't $92 a month or whatever I'll give it a shot. Ask your uncle about fat and carbs in the diet. Does dietary cholesterol raise your blood cholesterol? What about saturated fat? How good are those studies? If he says that they are good studies, he is wrong. Most nutrition studies are observational and just show correlation, and some of them are just terrible studies.