Why are glucose tablets so terrible?

I've avoided using glucose tablets for more than a year, but finally picked some up (CareOne brand). I'm blown away. How could someone make sugar taste so terrible?? It's literally "the tasty molecule" and they've made it taste like sidewalk chalk crossed with baby medicine. I'd rather just be hypo than deal with the bellyache from gnawing these clay disks.

Has anyone found a brand of tablets that doesn't taste like licking a sand castle?