Do you happen to have some clinical or scientific background to support that assertion?
My experience with some of those studies leads to MY assertion that most of 'em are produced to order by what I've come to call Grant Whores.
Taken literally, the sum total of all of those studies would logically lead to a regulation that all newborns are to be advised that the act of being born is the ultimate health hazard.
....and no, I'm not being even faintly sarcastic.
The fact that all studies related to health and nutrition might not have been valid, or even honestly pursued, does not change the reality that answers to questions concerning health and nutrition will be found in science,
But if you want to believe otherwise, go right ahead.