> "We really need multiple long-running (50+ years) randomized study that controls for all influence factors to really answer the questions. Something that is u

> "We really need multiple long-running (50+ years) randomized study that controls for all influence factors to really answer the questions. Something that is unlikely to be accomplished in our current political lifetime and unlikely to be completed within our lifetime." This would be a waste of money. Its not going to tell you anything about the effect of diet in any real people, only "average" people.