Personally, I use Greens+ with high ORAC, wild berry flavored. It costs the exact same as the original but it contains various berry extracts.
I've been using this product religiously since I did the Get Shredded Diet a little over a year ago. Guess what, I've had the longest streak of not getting colds, allergies, and other illnesses since using this product. It may not be magic, but it sure as hell makes you healthier and boosts your body's ability to combat germs, etc. Not to sound gross either, but the stuff helps you stay "regular" as a mofo too. I refuse to consume protein shakes without it!
And best of all, it doesn't take much to be effective! I only use one serving a day (3 level tbsp) but instead of consuming it all at once, I split it up into 3 servings, one with each protein shake and then I have a bit of whole veggies/ green salads with my whole foods.
You can find good deals on the web...much cheaper than stores. PM me if you want to know where to get it for cheap, or you can simply google it for yourself.