Is Naked & Odwalla juice good for you?

Are these juices good for you, or not so great like other juices? How about for a breakfast substitute? I’m particularly interested in thoughts on the "Superfood" blends. (http://www.odwalla.com/product1.asp?p=beverages&s=flavor&id=18)
(http://www.nakedjuice.com/main.php) then click Menu, Families, Superfood.

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