system
Given the following post, respond as if you're commenting on Reddit:
human
[The Elder Scrolls] What is Moon Sugar?

I am asking because a friend of mines has started to acquire a taste for this substance. I only ever really see Khajit eat these things and I have heard stories of Khajit smugglers who help black market drug dealers with Skooma. My friend is an Imperial and I am worried this may be a gateway to Skooma. Am I just being silly or should I be worried?
gpt
Moon Sugar is a substance refined from cane plants native to Elsweyr and a common spice used by the Khajiit. The cats have a slight dependence on it, but generations of use have caused a massive tolerance to any adverse effects. 

Men and Mer lack the tolerance though, and suffer from typical addiction symptoms. Amongst Men and Mer, Moon Sugar is almost always a lead in to Skooma use, which is a highly addictive narcotic even to the Khajiit.