system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: how do beans cause so much more gas than other foods?
gpt
Beans have a thin layer of stuff like wax that coats the outside and makes them shiny. This wax isn't food so it goes through your whole system without digesting. The different parts of your stomach and good bacteria in your guts transform it and change it many ways but it's still not absorbed as food and it causes the bacteria to make gas. 

You can make beans in a way that washes off the wax but it's not easy and sometimes takes an entire day just for one pot of beans.