"Juice removed from the fruit is just concentrated fructose without any of the naturally-occurring fiber, pectin, and other goodies that make eating a whole fruit good for you. Did you know, for example, that it takes 6-8 medium sized apples to make just 1 cup of apple juice? You probably wouldn’t be able to eat 6-8 medium apples in a single sitting. (I know I can barely eat one!) But you can casually throw back a cup of apple juice, and you would probably be willing to return for seconds. That’s why fruit juice is dangerous. It’s far too easy to consume far too much sugar."

This paragraph is, arguably, far more important than all the hysteria about flavor packs, but it's only partially correct. Fibre does help provide satiety but, in and of itself, it isn't what's good for you about eating whole fruit unless you simply aren't getting enough fibre and have issues with constipation. What fibre does do is reduce the rate at which we absorb sugar. Apple juice will give you a nice fast sugar high and then a low, much like candy. An apple will give you a gradual surge of energy for a while. If you're going to eat something sweet, it's far better for you if it comes combined with fibre.

So don't go searching for juice that doesn't use flavor packs. Don't buy a juicer and juice your own either, because you're still throwing away what separates fruit from candy. Don't mess around with fermenting juices and all that probiotic jazz. If you simply must drink your fruit, use a blender.