cabbage soup diet and olive oil

When cooking the veggies can you use any oils, or should all veggies be steamed. Also, when eating raw veggies can you have oil and vinegar or no dressings at all?

One tablespoon olive oil per day is fine. Some vinegar for salad is no problem too. With the olive oil you may fry some veggies, prepare a salad dressing or drop it in your cabbage soup. There is even a cabbage soup recipe which allows 3 tablespoons olive oil (this is one of my favorite): cabbage soup with olive oil and pecorino

All the best,
Gabriela