The "golden era" of salt Bob talks about I thought was right now. Some studies have shown that reducing salt intake resulted in higher mortality and/or morbidity. I have not heard responses that those studies were wrong, misinterpreted etc (and for all I know, maybe they are). The official recommenders and pronouncers Darwin refers to don't seem to care
. Darwin is arguing from authority, which can make sense because most of us laymen are less knowledgeable and don't have time to learn but have to trust experts. But I'd like him to actually educate us rather than just pass on pronouncements.