Without any legitimate basis, of course.
"Without any legitimate basis, of course."
That's just as asinine a statement as those who put vaccines in the cross-hairs. The correct answer is simply that we don't know.
Here's my opinion: It's silly and presumptuous to assume a one-size-fits-all proscription for a public health problem. Humans, though similar basically, also have many differences in physiology and body chemistry. What may be helpful, or at least harmless, in one individual may be toxic in another.
Bottom line, stop being so simplistic.