Sounds like wholesaling, purchase an item and sell it to someone else. But it is a food item.
Selling locally...
selling internet...
don't know the regs, so I can't help with specifics.
Hmmm.... as a wholesale seller, I've only sent my product to a very few resellers, all of which had an established store front/brickandmortar business. It seems anyone can sell and resell 'anything' that is not a refrigerated/fresh grocery item in the internet.