Georgetown Cupcake Sisters Shed 100 Pounds

Katherine Berman and Sophie LaMontagne share their secret to dropping weight together.
2:38 | 10/15/15

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Transcript for Georgetown Cupcake Sisters Shed 100 Pounds
Next up our "Heat index," a sweet weight loss story. Sisters known for their cupcakes, but still shed a combined 100 pounds without giving up the cupcakes. ABC's Mara schiavocampo is here. How did they do it. Reporter: Speaking of sugar, right, losing weight is hard enough but imagine trying to do it when you're surrounded by cupcakes all day. Well, these sisters say they did it just by literally putting one foot in front of the other. Katherine Berman and Sophie are related in more ways than just one. Co-owners of Georgetown cupcakes, stars of the popular tlc show "D.C. Cupcakes"? We want to make sure it tastes good. Reporter: And sisters and now the pair can add massive weight loss to their list of things in common. While pregnant two years ago Katherine gained 60 pounds. The weight came on so quickly and so fast for me and my portions were a little bit out of control. Reporter: Sophie found herself getting heavier too. Putting on the sympathy weight. I was basically eating as much as Katherine even though I was not eating for two and Katherine's sister, I went for seconds and thirds too. Someone eating a lot you just naturally eat as much as they do. You're in the same surroundings and same situation and before I knew it, I had gained 40 pounds. Reporter: So after the baby came the sisters got to work and in nine months. All: Together we lost over 100 pounds. Reporter: Necessary rest pay to sweet success. We didn't want to diet. That's not a word in our vocabulary as bakers so we started walking. That's all we did. We walked six miles a day, five days a week and we did it consistently. Reporter: While they even allowed themselves one cupcake a day, they also focused on more sensible portions overall which experts say is important. Kids because they know that it sells sugar sweetened cereal and da sos and we've been trytoing Mo Vey aware fm atth. St' iot N to kid, right? It's hard. They see theiroing this and say, I want to be like them. So break it down. Average soda, average sweetened cereal. So, yeah, take a look at this graphic. Sugar cubes is good way to look at it. 64 grams of sugar in a 20-ounce amount of sugar a kid is supposed to have entire day. It's twice what an supposed to have in an entire enormous a look at a breakfast cereal. An average bowl, 12 grams of sugar, that's three teaspoons of

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