system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it safe to eat veggies/fruit grown in rain water/waste water - but not drink the water by itself?
gpt
This is absolutely not always true!

Plants can *and do* absorb toxins from their environment. Now, the plant may filter some (or even all) of them out, but it might not. Some might end up in the parts of the plant you eat - **especially** if you eat the roots.