The problem with doing science is enormous. I have often said that science is a "discipline," and what I mean when I say that involves the recognition that it can be used even more easily to conceal the truth -- or even advance falsehood -- than to establish the truth. In fact, science, qua discipline, can't really "establish the truth." It can only really show what's unequivocally false. Doing this involves confining one's self (through discipline, over the desire to "prove" one's self "right") to speculations and hypotheses that are falsifiable. I've linked this before, but here's my favorite passage that serves to explain the principal. So, in short, we speculate and hypothesize, and then if doing science in a disciplined way, we set about to prove our speculations and hypotheses...not true, but false. Failing to do that, time and again, is the basis of real science. Look at it logically. Even if I came up with a million different associations to "confirm" or suggest that a hypothesis could possibly be true, I only need one single contradictory fact to render a hypothesis useless. In the fields of nutrition and health, it's an unmitigated disaster. Has been for decades. It's...