Here's what happened when I drank a green smoothie instead of coffee every morning for a week
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(Kathleen Elkins/Business Insider)A week of kale, spinach, and spirulina.

My weekday mornings are like clockwork. When 7:30 a.m. rolls around, my body knows it. I still set an alarm because I like the soothing sound of my Jack Johnson ringtone.

I fire up my French press immediately, take 15 minutes to become business casual appropriate, guzzle my liquid energy, and am out the door just before 8. I join the masses and power walk down New York City's bustling Fifth Avenue to my office, where instant oats and coffee number two await.

While I'm all for spontaneity over monotony in general, certain things must be strictly regimented.

So when my editor recently asked our team to try a popular morning-productivity hack for a week and report on the results, the thought of changing anything about my routine gave me the chills.

I didn't particularly want to sacrifice my luxurious 7:30 a.m. wake-up call or make room for intense exercise, so I chose to hack my mornings by eating superfoods. Specifically, I decided to drink those obnoxiously green smoothies you see health nuts walking around with after their workout — the people that make you feel guilty about hitting snooze and consequently scarfing down a Pop-Tart on your way out the door.

Green smoothies supposedly have incredible health benefits. The fruit-veggie combination offers vitamins and minerals galore, they're low calorie but keep you feeling fuller for longer, and drinking them can help you stay hydrated.

Since my goal was to hack my morning with a healthier start to the day, I also decided to eliminate my alarming intake of caffeine for the week.

Go big or go home.

Here's how my (nearly) coffee-free and green-drink week played out:

Monday

Worried I wouldn't pass a smoothie shop en route to work, I panicked and ran into the first place I saw green drinks — Pax Wholesome Foods. They don't blend their own smoothies, so I settled for a Naked "Green Machine" juice packed with 10 "green turbo boosts," according to the label.

I had no reason to panic, as I proceeded to pass upward of five smoothie shops between Pax and my office.

It took a few sips to get used to the lukewarm concoction, but I decided the flavor wasn't half bad. It didn't fill me up nearly enough, however, nor did it provide the same boost of energy my double-coffee routine does. I cheated and snuck in half of a cup of coffee to combat the Monday yawns.

Tuesday

I stopped into one of the several smoothie places I passed the day before, a tiny juice shop squeezed between a souvenir store and a pizza place.

I ordered the "Amazing Green" smoothie, which contains pineapple, banana, spirulina, and protein. Worried the color of the drink wouldn't be green enough, I added kale (turns out the spirulina, a dietary supplement, would have provided plenty of green on its own).