With a design empire that includes interiors, architecture, and now fashion, Kelly Wearstler tackles 30 meetings a day on a diet of boot camp and beet juice. How does she juggle it all? While she has no appetite for empty calories, she certainly has taste.

You started out in interior design, but your company has grown in recent years.

Kelly Wearstler: I'm a designer, which includes interiors, architecture, fashion, furniture, and lifestyle. I'm 100 percent involved with 100 percent of my projects. I choose every hinge, every button, each lightbulb.

How do you start the day?

I go to Barry's Bootcamp at 5:30 a.m., seven days a week. It's me and a bunch of Hollywood hot-shots. I've heard we burn 800 calories per class.

Sounds intense. Do you hydrate?

KW: I drink water mixed with Miracle Reds or Miracle Greens, with drops of plankton. Later in the day, I drink water with lemon, and alkaline water with cayenne extract.

You must be starving after that workout!

KW: Not for a while. After I drop my sons off at school--they still let me walk them into class--I get a double dry nonfat macchiato at Urth Caffé. And for the rest of the day, I juice.

Wow. What's your juicing ritual?

KW: I get juices at Erewhon. I usually start with a "Superfood" juice. By noon, I get a kale, spinach, lemon, ginger, and E3Live juice. I avoid orange- and pineapple- based juices--too much sugar. A little beet juice is sweet enough for me.

What about real, solid food?

KW: Besides almonds or granola, I don't eat a lot during the day--juicing is what gives me energy.

Do you cook or bake?

KW: I'm not the bake-sale-mom type--though once in a while, I'll make challah French toast for my sons.

What about for dinner?

KW: That's the one meal I sit down to enjoy. Simple things like roast chicken and big salads, and beans, lentils, and hummus.

Do you have a favorite restaurant?

KW: My husband and I go to Il Fico every Friday, and I get the whole-wheat pizza. I won't eat pizza anywhere else!

Your schedule sounds nuts. Do you sleep like a baby?

KW: Yes! We go to bed early. Last night, I fell asleep with my kids at 8:45.

Do you wear Kelly Wearstler-designed pj's?

KW: I wear a little bathrobe over a Cosabella thong. When I take off the robe for bed, sometimes my husband is like,"Ooooh." And I'm like, "Sorrrry!"

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