She needs to watch the smoothies though...they have more points than if she ate the fruits/veggies in the natural form. Not sure why.
I shouldn't be giving her advise as I have no idea about WW and the points system.
I usually have berry smoothies and also add spinach or even broccoli for the extra fibre. They are very low carb and do the trick if you have either hunger pangs or are craving something sweet.