system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What exactly are the 'toxins' people talk about getting rid of from your body?

So I've seen a few articles here and elsewhere on the net, as well as heard it mentioned by people I've talked to. Some people seem to talk about doing things or eating certain things to rid your body of toxins. What are they talking about, and is there any science behind it?
gpt
They don't even know. Most of those "toxin flush" programs are nothing more than diuretics with some "all-natural" alternative medicine added. The truth is that the word "toxin" just helps them sell their product to people that are scared of the word "toxin".

Actual toxins can build up in the body, but no OTC pseudomedicine will do anything about them.

Edit for people that are claiming that some all-natural remedies can help: Yes, they can have positive benefits. These benefits have nothing whatsoever to do with toxins. It's telling that of all the people who replied here claiming that "toxin" removal is real and solid science can't even answer OP's question - what are the toxins? Name them.