The contrarian view...
Literally: So is frozen fruit. Good, really good.
Most days, in the afternoon heat, I throw a handful of frozen fruit into the blender. Usually strawberries, but mango, peaches, and papaya are good too, individually and in combination. Three heaping spoonfuls of malted milk powder, some soy or almond milk, a dash of honey. Pulse the blender a few times, and the result is sort of a thick, healthy malted milkshake. Smooth...I think I'll call it a "smoothie™".
Mmmmmm....