Cabbage helps us in loosing weight. It has said to have negative calories...i.e., the amount of calories spent by our body to digest cabbage is more than the amount of calories gained by digesting it. So you end up loosing calories which is beneficial for you.
Check this out:
http://www.whfoods.com/genpage.php?tname=foodspice&dbid=19http://www.dietobio.com/aliments/en/cabbage.htmlit will give u a detailed explanation of the health benefits in cabbage.
My suggestion to you would be to start having cabbage regularly either in the form of a salad or cooked
Hope this answers your question