How do you cut the gas from cooking cabbage?

I know there used to be a way and I have forgotten it's an old fashion method in the cooking.How do you cut the gas from cooking cabbage?
Cabbage and Health

As inexpensive as cabbage is, it is one of the richest when it comes to protective vitamins. Raw cabbage cleans the waste from the stomach and upper bowels which improves digestion and reduces constipation.



Hailed as a cancer inhibitor, particularly colon cancer, cabbage also stimulates the immune system, kills harmful bacteria, soothes ulcers, and improves circulation.

http://homecooking.about.com/od/foodhealHow do you cut the gas from cooking cabbage?
idk
BEANO!
go to the vitamin section at walmart,there is a bottle with eye dropper of some stuff like gas x but you add it to the food and it works that way.