Rebel Wilson Rebel Wilson has been on a health journey, and she wants to be healthier in 2020 and make some positive life changes. "Okay so for me 2020 is going to be called 'The Year of Health,'" she declared on Instagram, "So I put on the athleisure and went out for a walk, deliberately hydrating on the couch right now and trying to avoid the sugar and junk food which is going to be hard after the holidays Ive just had but Im going to do it!" Shes been working out with trainer Jono Castano seven days a week and throughout the winter press and awards circuit, she's been looking strong and glowy. Judging by her killer ropes routine, it seems like she's a fan of high-intensity interval training. Getty Images
Janet Jackson Janet gave birth to her first baby in early 2017, and by late 2017, she had lost 70 pounds, according to E! News . Janets trainer Paulette Sybliss shared, "I started training her about six weeks after she had Eissa so about March we started. We had a very vigorous training schedule. We were training a minimum of four times a week and the sessions were never less than 45 minutes, no more than an hour. Very intense, though. Very intense training." Getty Images
Missy Elliott The hip-hop legend has been on a healthy journey in recent years. In 2018 she shared on Instagram, Proud to say its been 4 months I have only drank water no other juices or soda & I cut out bread & Lord knows thats been the hardest for me! and that, though she has NEVER been a water drinker, her efforts to become one clearly paid off. It really restore glow back & I dont feel sluggish, she wrote, as reported by People . In 2011, Missy also revealed to People that she was living with Graves Disease , an autoimmune illness affecting the thyroid. Getty Images
Shonda Rhimes In 2017, Shonda opened up about her 150-pound weight loss to Health . "I did not do it because I thought I would become beautiful like in the movies, Rhimes said. I did it because I could not walk up a short flight up stairs without stopping to take a break and wiping sweat from my brow. I did it because my body was physically rebelling against the brain that had been ignoring it for so long. Getty Images
Kim Kardashian Kim gets work done in the gym. "When it comes to booty and legs, we usually work out for an hour and a half to an hour and 45 minutes," Kims trainer Melissa Alcantara previously told WH . "You want to work out efficiently and be smart about it." She also sticks to healthy foods, for the most part. "I live a healthy life and try to eat as plant based as possible and drink sea moss smoothies," she previously told Poosh . Getty Images
Mariah Carey The singer told Us Weekly that she strives to work out three times a week and, instead of doing three big meals a day, aims for several smaller meals throughout the day. Getty Images
Daphne Oz She recently announced that shes the latest WW Ambassador, and shes also been sharing her postpartum workouts on Instagram. She gave birth to her fourth child in late 2019, and shared about her first workout: everyone starts somewhere. #10weekspostpartum just got sweaty and it felt so GOOD!! only my second real workout since having Gigi. Im not in a rush, I just want to start to feel my core again and strength in my skin. consistency and baby steps get it done #onmyway #herewego Daphne Oz/Instagram
Ariel Winter In 2019, Ariel showed off some noticeable weight loss. She does intense gym seshes , and Ariel also shared that finding the right mental health medication led to unexpected weight loss. Years ago, it was hard because Id go to the gym with my trainer and because of my antidepressant medications I never saw results, she said. Eventually, she decided to switch medicationsbut not for aesthetic reasons. I didnt change my antidepressants because I wanted to lose weight, Id just accepted it and it was fine, she said. I got inspired to actually find a medication that helped me as a person and did all the things I wanted it to do. Getty Images
Teddi Mellencamp The Real Housewives of Beverly Hills star opened up to WH about how she gained 80 pounds in one year after moving to California and starting a stressful job. She yo-yo dieted for years but continued to struggle with her weight after she became a mother. Walking, running, or hiking is just as good a workout as a cardio class at a fancy gym and theyre free. The healthiest meals are often the simplest meals: A good carb, a healthy fat, some protein, and veggies are really all you need. You dont need to be a chef, much less hire one! she shared. Getty Images
Lauren Alaina The country singer and American Idol alum danced her way to serious weight loss in 2019 after appearing on Dancing With The Stars. She was one of the top-scoring stars competing on the show, and lead the way in pounds lost, too. Ive lost, like, 25 pounds since July (2019), Lauren told People . None of my clothes fit! Her pro partner Gleb Savchenko added, Youre welcome. Getty Images
Kate Hudson Kate is a brand ambassador for WW and is using the program to help her get back in shape after the birth of her third child in 2019. She joined as a global ambassador last December and announced her weight loss goal of 25 pounds . It was a smarter way to take weight off, because it stays off. I think the wonderful thing about what that is, is you can eat what you want, you just have to be conscious. It teaches you about food," she said . Kate Hudson/Instagram
Sherri Shepherd Sherri shared her weight-loss journey on the keto diet with People in February 2019. She revealed that she has lost about 30 pounds, going from 189 to about 159. She also shared her waistline measurementsshes at 35 inches now, down from 47 inches. Getty Images
Gabourey Sidibe In May 2016 Gabourey revealed she had weight-loss surgery, according to Life & Style . The surgery wasnt the easy way out. I wasnt cheating by getting it done. I wouldnt have been able to lose as much as Ive lost without it, she said about the surgery. She told People in 2017 she also has a tough workout regime. I work out with my trainer three to four days a week. If Im not working out with a trainer, I get up, and I go swim. Getty Images
Sarah Rue The actress shared with Shape that she used Jenny Craig for her weight loss. "I was never really able to lose weight on my own," Sara said. "Clearly, it was something I struggled with so I wanted a program that provides extra support. Jenny Craig does that. In terms of fitness, I'm going to rely on a professional for that as well. I really don't know anything about [working out] so I'm like 'just tell me what to do!'" Getty Images
Ricki Lake In 2010, actress and TV host Ricki Lake lost over 130 pounds, going from a size 24 to a size 6, according to ABC News . "It's not easy but I'm telling you, I am not superwomanif I can do it, anyone can do it," she said. "And you don't have to do something extreme. You don't have to have surgery, you don't have to, you know, be in a gym all day long. You just have to be consistent," she said. "And, you know, be a friend to yourself, not be an enemy." Ricky Vigil M - Getty Images
MoNique In 2014, comedian and actress MoNique lost 80 pounds and shared the details of how she did it through Twitter, posting about her workouts which included weight lifting and jumping rope, according to ABC News . Getty Images
Drew Barrymore Drew has not been shy about her weight-loss journey, and she gives all the credit to her trainer, Marnie Alton.This woman is my long time teacher and dear important friend. She has helped me. Healed me. Encouraged me to keep going when I felt like being strong was an insurmountable task, Drew captioned a series of photos of her and Marnie working out together recently on Instagram. Drew said shes known Marnie for about 15 years and that she helped her transform her body for the Santa Clarita Diet. I lost 20 pounds and trained like a mother, Drew said. Getty Images
Jessica Simpson Jessica recently lost 100 pounds after the birth of her third baby, Birdie, with the help of celebrity trainer Harley Paternak. He eased Jessica into activity slowly, starting with walking 6,000 steps daily. Its a social thing that she can do with her kids," he said. Slowly, she built up to 14,000 steps, according to E! News . Getty images
Jennifer Hudson Jennifer Hudson dropped from a size 16 to a size 6 in 2010 after teaming up with Weight Watchers, and shes kept the 80 pounds off since. "I don't really have time to do much [working out], so I really just watch what I eat," the singer/actress told Good Housekeeping last year. "I'm very careful and cautious of what I'm eating, so I just try to pace those meals throughout the day. I'm very conscious of what I put in my body." Getty Images
Kelly Osbourne Since she made her TV debut on her familys reality show, Kelly Osbourne has lost 70 pounds. And participating in Dancing With the Stars in 2009 is where she learned some of her healthiest habits. "[My partner, Louis van Amstel] made me eat turkey burgers and salads and explained to me that a high-protein, low-carb diet would keep me energized," she told Shape magazine at the time. "Then I started losing weight and realized, 'Oh, its true what they say: Diet and exercise really work!'" Getty Images
Melissa Joan Hart In 2014, Melissa Joan Hart opened up about shedding 75 pounds after giving birth, telling People she was initially inspired by her sister-in-laws weight loss: "Sally taught me that you want to feel good about yourself. When she first started losing weight, she got compliments and they drive you to want to do more." But it's the social element of fitness that keeps her motivated to work out. "I chitchat with friends on walks or run with my husband," she told Us Magazine . Getty Images
Kirstie Alley Kirstie Alley first made headlines for her weight loss back in 2006 when she dropped 75 pounds in three years as a spokeswoman for Jenny Craig. Shes gained and lost weight since, but she still maintains a 50-pound weight loss using the program. "Im on maintenance, so I have one Jenny Craig meal a day and then Im on my own, but I also have my Jenny Craig consultant," she told People last year. "So if I feel like Im going awry, I just call her and she gives me some tips and a pep talk." Getty Images
Adele Adele hasnt shared a number when it comes to how much weight shes lost, but her figure is noticeably slimmer from when she first topped chartseven after giving birth. But it was never about the scale for her. She decided "to get in shape for myself, but not to be a size zero or anything like that" in 2015, according to Rolling Stone, and cut back on sugar (but not carbs"Id never deprive myself like that!" she said) to build stamina for touring. Getty Images
Christina Aguilera Christina Aguilera shed nearly 50 pounds back in 2013. She took time off from The Voice to do it"its amazing what having some personal time can do, not only for the body but also for the mind and the spirit," a source told People . "She has been trying new types of foods and exploring new methods of exercise. Not for diet or weight, but more for her mind and well being and overall sense of good health." Aguilera also credits reiki, an ancient Asian practice thats said to heal your body and mind, for her weight loss. Getty Images
Khloe Kardashian Earlier this year, in a promo for her weight-loss show Revenge Body, Khloe Kardashian admitted that her family actually asked her to lose weight. Shes also documented her weight-loss journey on Instagramin one before-and-after photo, she referenced her 40-pound weight loss, which she told Womens Health was motivated by her break-up with ex-husband Lamar Odom. "If you were to ask me five years ago if ... I would be an inspiration to many others, that I would be the push that others needed to find their way. I wouldve laughed in your face. Me? The chubby one? No way!" she wrote on Instagram. Getty Images
Lena Dunham Last year, at an event for trainer Tracy Anderson, Lena Dunham debuted a much slimmer figure than shed shown off on GIRLS. But it wasnt about weight loss for Dunham, Anderson told People . "She had significant health issues [OCD and endometriosis]," Anderson said. "She was open and transparent about her health issues, but our convoluted f-ed up celebrity culture was like, 'What diet is Lena doing? Lena lost weight,' and Lena was like, 'I was freaking sick!' She didnt come to me to make her body look different, she came to me to feel better." Getty Images
Roseanne Barr Roseanne Barrwhose Roseanne returned to TV this yearhas long been outspoken about her weight. She had a gastric bypass in 1998 ("I had my entire digestive system removed, so I should look thinner," she said per People ), which helped her lose 80 pounds. And she lost even more weight in 2014"I'm just doing the things you're supposed to doyou know, moving more, and eating less, she told Us Magazine . Getty Images
Janet Jackson After giving birth at 50 years old last year, Janet Jackson lost 70 pounds working with trainer Paulette Sybliss. "I started training her about six weeks after she had Eissa. We had a very vigorous training schedule," Sybliss told E! News . "We were training a minimum of four times a week and the sessions were never less than 45 minutes, no more than an hour. And Jackson follows Syblisss rule that if shes eating well 90 to 95 percent of the time, she can eat anything that she wants in moderation. "I don't set her a cheat day at all," she explained. "If Janet feels that she needs to have a chocolate cake, [she can] go ahead and have a chocolate cake." Getty Images
Nicole Snooki Polizzi Jersey Shore star Nicole Snooki Polizzi lost 42 pounds in six months after having her first baby in 2013 by following a 1,300-calorie-a-day diet and working out four days a week with her personal trainer, according to Us Weekly. "Ever since I became a mom and saw all these strong, fit moms at the gym, it was inspirational," she told The Cut . She still trains with Anthony Michael and Adria Bogosian of Anthony Michael Fitness , and has shared her own workouts in addition to writing a book called Strong Is the New Sexy: My Kickass Story on Getting My Formula for Fierce . Getty Images
America Ferrera America Ferrera has slimmed down since her Sisterhood of the Traveling Pants days, but shes focused more on body positivity than jean size. "How much time have I wasted on diets and what I look like? Take your time and your talent and figure out what you have to contribute to this world," the now-pregnant star told Cosmopolitan for Latinas in 2012, "and get over what the hell your butt looks like in those jeans!" Getty Images
Miranda Lambert Country singer Miranda Lambert lost about 20 pounds back in 2014 and has kept it off sincewithout any miracle diet. "You get tired of any diet. I've tried everything," she told Womens Health. "I just literally would make grilled chicken breast, sweet potato salad. There was no miracle." For the country singer, it wasnt about the scale, but how she felt as she approached 30. "I just thought, maybe if I get ahead of it a little, I won't have to work so hard later in life," she said to People . Getty Images
Melissa McCarthy Back in 2011, Melissa McCarthy told People her body was a "work in progress," but since then, shes lost a reported 75 pounds. Shes now a size 14, and attributes her weight loss to her laid-back lifestyle. "No trick, nothing to tell, just super boring life. You bring it real down, you dont do anything fun and you go to bed at 7:30 that's the trick," she told Extra . Getty Images
Jordin Sparks American Idol alum Jordin Sparks lost 50 pounds in 18 months back in 2012, according to E! News. "I just wanted to be healthy," she told Shape at the time. "I remember thinking, 'I'm in my prime. I should be happy and fit.'" Sparks started walking every day and watching her portion sizes, then worked with a trainer to build muscle. "There's no quick or magical way to lose weight," she told Redbook . "You just have to do it the natural waydiet and exercise and stick to itand be able to do it at your own pace." Getty Images
