Broth
You can also go to a Bulk barn and purchase a small variety of broths there if you want changes, just make sure there is no noodles in it and no cream soups. The clerks are very helpful if you have questions.
As for Optifast both are preety good but taste even better with a drop of flavor in them, Vanilla was great with coconut food flavor, and choclate had a varity to make it taste good, banana food flavor was my favorite. Almost done here and surgery in 5 days.
Kathy