[cle]

Sure you can, go for it. But I doubt that many people have the time nor the skills required to actually come to some justified conclusion. The scary part is that many of them think they do. Often the very ones who tell you "read the science" or "just go read some papers" are the ones who dramatically underestimate the amount of effort and nuance it takes to synthesize the results of numerous researchers into a coherent meta-analysis. You can try, sure, and personally I enjoy it, but unless you're already an expert researcher in the field, you should be very skeptical that any conclusions you make are actually valid.

It takes an enormous amount of domain knowledge to reasonably interpret the statistics of experiments, epidemiological studies, etc. We may think we can read them and come to our own conclusions, but I think it's usually our hubris that leads us to believe that those conclusions are justified and not just rolls of the dice.