A commentary published last week in Nature argues for the regulation of sugar as a toxic substance. The authors and I agree about ends -- reducing sugar intake -- but have some potential differences about means.
The notion that sugar is a "poison" was established when a lecture by Dr. Robert Lustig espousing that view went viral. Dr. Lustig has made the same case in peer-reviewed articles, and he and his co-authors do so again in last week's commentary.
While the construction of alarming tables and figures demonstrating the calamitous effects of sugar (and specifically, fructose -- Dr. Lustig's particular nemesis) can be defended with legitimate science, it is nonetheless something of a distortion. Even more calamitous pathways could be mapped out for oxygen, which in excess is not just highly toxic, but lethal in rather short order. Oxygen, per se, is not poison of course. The dose makes the poison.