I know a number of highly intelligent people in the sciences who make decisions like this (searching/waiting for Science to tell them what’s right) and who laugh at me when I follow intuition/folk knowledge.
Don’t get me wrong, academic research is an amazing thing. I follow many research backed protocols for fitness, diet etc. But I also think when it comes to systems as complex as our bodies, there’s much collective wisdom in our intuition and societal traditions that science hasn’t and may never catch up to.