It's interesting that the population seems to be very critical of any food-health articles, presumably from over-saturation of poor science reporting. (Best example of this I know of - http://kill-or-cure.herokuapp.com/ - a study of things the UK's "Daily Mail" "newspaper" has claimed cause or cure cancer, many are in both categories).

But it is also clear that what and how we eat has a significant effect on our health, which is interesting and relevant to us.

How to sort the wheat from the chaff?

A "truth database" or factchecking site might be pretty useful. Or would it just boil down to "eat your vegetables and do a bit of exercise"?