I actually drink green smoothies every morning, for years already. Like 1 liter (3 glasses?) It's my only food until late lunch, or no lunch :) Boosts your immunity like nothing else. Don't know what it is to be sick anymore! I don't do "only smoothie" kinda thing since I am pretty healthy all year long, and if I slip (christmas) it's not for long so I can catch up fast:) Cheers!