system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5 Why do we not taste the sodium in sugar free soft drinks?
gpt
You do. If you took it out it would taste worse. 

At very small quantities we don’t perceive salt as  salty, we perceive it as enhancing other things (notably sweetness in this case). This is why almost everything has at least a small pinch of salt.