I was posting a bit on Reddit and wrote this post. And then edited it. And edited it. And edited it. And got it "just so." Then I decided I may as well post it to my blog, so here it is:
You have three kinds of juice drinks...
1) The "Aww Yiss" juices
Proof that there is a God, and he loves us. These are the fresh oranges/apples/mango juices... or anything with a little style, like carrot and tangerine and a touch of ginger. You'll be like "Where have you BEEN all my life?" Trust me: Nothing any grocery store has ever sold in a bottle since the dawn of time has ever tasted this good.
How often do you have to drink this? You can drink it as often as you want, but you will need to take it easy because an excess of fruit juice can actually hurt you if you overdo it (due to the incredibly, stratospherically high sugar content).
2) The "I'll Learn To Love It" juices
The first time you try lettuce/kale/cucumber/celery/spinach/bok choy/green pepper/zucchini juice, you're going to make a "who farted?" face and shake your head violently while it goes warm in your mouth because you refuse to swallow. But no matter how hard it may seem, keep drinking it: Your initial reaction is probably because you're used to drinking Jolt Cola and coffee with eight creams and a quarter-pound of refined sugar. As your palette begins to change, you'll find you're not only enjoying the green juice, but actually craving it. After a little time and some experimentation with the recipes, you will grow to love it. That's a promise.
How often do you have to drink this? Often. This makes up the backbone of juicing and you really should be knocking back about a liter a day of this stuff. More if you can. Every other juice you drink on your fast is negotiable except this one.
3) The "Oh God Make It Stop" juices
To be fair, few people actually make these on purpose. They're usually stumbled upon by tragic accident. My first experience with this kind of thing was when I thought "I'll add an onion to this juice and then it'll be extra tasty!" And let me tell you: It's the only time I've almost literally thrown up after a glass of juice. Another example was when I grossly overestimated the intensity of some jalapeños I added, and I ended up drinking what I can only call "pure hate in a glass." The point: Really, really disgusting juices aren't part of the fast as a matter of course. There's nothing about this diet which requires you to drink something truly nasty.
How often do you have to drink this? You don't, unless you're actively experimenting to try and find something unusual, or you have a very specific health issue you're trying to address with very specific combinations of nutrition. Life's too short to drink disgusting juice.
