From the article "We engaged a professional medical organization..." A dismissal with the phrase "I don't even know where to start" is just a content-free way

From the article "We engaged a professional medical organization..." A dismissal with the phrase "I don't even know where to start" is just a content-free way of expressing contempt, and suggests the writer doesn't have any interesting or useful information to share. Plenty of research indicates that at the very least, Vit D, Vit A and zinc help protect against severe covid, and it's notable that the author reports that nobody who attended this event has developed a serious case and 90% have already recovered.