Maybe it's that the price of vegetables went up to much or it is a side effect of sedentary life but now even fermenting kimchi is getting constipated. This is a real problem and it's not getting better.
My friend I call Bae Chewy is actually a Napa cabbage kimchi properly called "baechu kimchi". He is a whole cabbage walking around.
His friend is Kkak Doogie or other wise known as Kkakdugi the oriental radish kimchi cubed. You can only find Doogie Kkak on Kimchi Sam's blogs. This little guy really just wants to let out a toot.
Here is the real science. This article from the journal of Korean science explains. It shows that fermented foods like kimchi contain good gut bacteria and pro-biotics that help the large intestine. I guess Doogie has plenty of gut bacteria but no large intestine. He is just a radish.