The Center for Science in the Public Interest is a PETA front group. They have an animal rights agenda. They are not objective. The Physicians Committee for Responsible Medicine is also a PETA front group. Anything you hear from these groups is slanted. It's junk science.
I didn't read the article. But not everything a group puts out isn't true. Else the sheeple willnot follow. I have done my own research.
The Ph Mircle, by Dr. Robert Young