I don't think you're incorrect. But, that said, acetic acid is a precursor for butyrate which feeds the lower gut. Gut health is now held (from much better stud

I don't think you're incorrect. But, that said, acetic acid is a precursor for butyrate which feeds the lower gut. Gut health is now held (from much better studies although I think it may still be a work-in-progress) to tie pretty directly to mental health, there's something going on across the blood-brain barrier which functionally makes your gut "part" of the brain's state. So, in summary, it's bad science in a good space. Better science is needed. For once, those damn hippies going on about apple cider vinegar may have been on to something although personally I go for aged balsamic on Mushrooms: Vitamin D, they taste amazing and umami.