Keep in mind with any diet should also have protein so i believe the cabbage diet is good a long as you have the proper amount of protein too.
6 large green onions (1 bunch)
2 green bell peppers
1 or 2 cans of tomatoes (14.5 ounce size, diced or whole)
1 bunch celery, sliced
1/2 head cabbage, chopped
1 package (Lipton) onion soup mix
1 or 2 cubes bouillon (optional)
1 48 oz can V8 juice, or 6 cups water or light chicken or vegetable broth
Season to taste with salt, pepper, parsley, curry, garlic powder, etc.*
Simmer or slow cook all until soup is done. *If slow cooking, add seasonings about an hour before done. Eat all the soup you want, whenever you want.