A few other things I forgot to mention:
Be careful mixing the Optifast with sodas and using a Magic Bullet. Some sodas are more carbonated than others, and we had the top explode off of the Magic Bullet while mixing one with Diet Root Beer. A blender works better because there is more room for expansion.
Also, if you try the Tomato Soup, be sure to mix the powder with room temperature Water first and then microwave it to heat it up. If you mix it with hot water to begin with it will clump up on you and it is not very good. We also added a little seasoning to the soup to jazz it up a bit.
We would also add some flavored extracts to some of the drinks. For example, we would mix the chocolate powder with diet cream soda and add a few drops of coconut extract.
Good Luck!
Cindy