Ask a public-health/nutrition student

[Aractus]

Well in a smoothie what you're drinking is the whole food.  There's no extraction process.  That's the difference between a juicer and smoothie maker.
And I'm sure people who say blending veg tastes bad must have never tried it because I blend veg then just blend in bananas with it and I pretty much just taste banana.  Especially if it's just spinach and banana, I can seriously fill most of the container with spinach and salad and it will still taste mainly of banana.  They definitely aren't put off by the taste because they've never tasted it, they pretty much drink red bull all day and smoke.

Well that's somewhat correct (see this page), but I would personally be cautious because of the plant lectins reducing the bioavailability of the dairy nutrients (which are very important for bone & teeth health). If you're just using fruit, vegetables, and water/ice then it's probably not an issue. But if you're using a serving of yoghurt or milk then you probably should pick up most of another serving of dairy later in the day that isn't consumed with plants, tea, or coffee (so instead of 2.5 serves of dairy, 3.5 for the day).