Heres Why: Cabbage is an excellent source of protein, dietary fiber, carbohydrates, vitamin C, folate, calcium and iron. And for those watching their waistline - a three ounce serving contains about 25 calories. We must tell you, however, that many of its benefits are lost in the cooking, and if you cook it in with the fatty meat, well, you may be defeating the purpose. Studies have shown that cabbage does help in the fight against cancer, especially for stomach, colon and breast cancers. Cabbage has strong antiviral and antibacterial properties and has also been found to be a helpful remedy for the treatment of ulcers. When it comes to the corned beef part of the meal - theres good and bad to consider. First the good - corned beef is a good source of protein and selenium. Now the bad news - corned beef, which tends to be salt cured, is high in saturated fat, cholesterol and sodium. So it is probably a good thing that most people limit consumption of this tasty meat to St. Pattys Day!