I work in the supermarket industry. I have basically drunk hundreds of drinks I sell here, and there are also sugar-free drinks, such as Pepsi Diet Coke, Diet Coca Cola, Master Kong sugar-free jasmine tea, unified sugar-free oolong tea and so on. Because the first two kinds of carbonated drinks are carbonated drinks, it is necessary to add sweeteners (it is not good to drink without adding them), and other carbonated drinks are all added with a lot of white sugar (half a bottle of cola is poured on the ground, and the sugar content is particularly high the next day), while the sweetener chosen for these two kinds of carbonated drinks is acesulfame (excluding white sugar), which is more expensive than sugar, so the price is a few cents more expensive, and people who are generally afraid of getting fat prefer to drink it.

The two kinds of tea drinks mentioned later are also sugar-free, which are considered as unsalable products (especially difficult to sell), because their own tea drinks are a little bitter. If you don't add a little sugar, you will find them more difficult to drink. These two kinds are more suitable for diabetics, the elderly and so on, and there are fewer customers.

Compared with sugary drinks, sugar-free drinks are not very popular, so basically small manufacturers will not rashly produce sugar-free drinks, and large manufacturers will only launch a few single products, so sugar-free drinks are rare in the world.