system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are multipack can and packets always "not to be sold separately"?
gpt
There's laws involving how foodstuff must be labeled.  They need nutrition information, ingredients and whatnot.  Some products packed in multipacks don't have that info on them - it's on the outside of the package - so they're not legal to sell individually.