teresa-giudice-weight-loss-12 While in prison, Giudice, 43, was able to shed the pounds and switch to a smaller size in the clothes she wears. "I only lost eight pounds or so," she admitted. "But I went down maybe two or three sizes from all the running, walking, weights, yoga, and exercise classes I was doing."

teresa-giudice-weight-loss-11 Giudice was on a limited diet because of the prison's horrible food . "Sometimes the food had maggots in it," she said. "You didn't want to eat for a couple days after that."

teresa-giudice-weight-loss-02 She made exercise her priority. "I was working out three times a day, every day," Giudice wrote. "It was one of the main things that kept me sane in there."

teresa-giudice-weight-loss-04 Giudice also turned into a yogi. "I also started doing yoga DVDs every day and taking yoga classes when they held them," she confessed. "I truly feel like yoga changed my life."

teresa-giudice-weight-loss-05 She even turned to Bob Harper and Jillian Michaels workout videos for help.

teresa-giudice-weight-loss-06 Giudice burned carbs with cardio. "I took care of my body and mind by walking and running around the track as much as I could," she said.

teresa-giudice-weight-loss-07 The RHONJ star even tried to eat clean. "I had my first meal in the dining room: chicken salad, beef soup, and an orange, which was surprisingly good," she said.

teresa-giudice-weight-loss-08 But not all of the meals were as tasty, and Giudice had to avoid meat often after learning that some of the products were over 1.5 years old. "I refused to eat some of the beef, pork, and even chicken depending on what it looked liked," she said.

teresa-giudice-weight-loss-09 Giudice had to flavor all her food. "The other ladies also taught me to buy mild pepper mix, jalapeno peppers, and Louisiana hot sauce to add to the food that they gave us," she said. "Anything to make it go down better."