Smoothies are all the rage these days. Forget meals -- you can get all your nutrition in liquid form, served in a handy to-go cup. Not that there's anything wrong with giving in to the smoothie craze -- I myself have forgone the traditional meal in favour of a quick energy fix from the nearest smoothie vendor.

And there are smoothies to fit all needs -- whether you're looking to bulk up on protein, trim fat, get as many antioxidants as possible or fulfill all your daily fruit and veggie requirements in one drink. All that and they're usually absolutely delicious.

But conventional wisdom tells me that when something tastes good, it probably has lots of calories. Still, how many calories can there be in fruit juice and yogurt? What do you think?

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