> Diet soft drinks get a bad rap but are imo an incredibly useful tool for health.
If you have diet sodas on one hand and obesity on the other, they're definitely the lesser evil. But that's also a pretty low bar, since obesity is THE co-morbidity factor for just about everything.
As far as I can tell, they're by far a lesser evil. There seems to be two health arguments against diet soda: that they can erode teeth and that they can degrade insulin function. The first of these is just as true for - say - eating an orange, and can be combatted by drinking or rinsing with water afterwards. The second is still a subject of research.
