Lifestyle Health Kim Kardashian Is Doing 2 Workouts a Day and Eating Plant-Based: 'Get Our Mind and Body Right' The fashion mogul is tackling her new diet and workout plan with sister Khloé By Julie Mazziotta Julie Mazziotta Twitter Julie Mazziotta is the Sports Editor at PEOPLE, covering everything from the NFL to tennis to Simone Biles and Tom Brady. She was previously an Associate Editor for the Health vertical for six years, and prior to joining PEOPLE worked at Health Magazine. When not covering professional athletes, Julie spends her time as a (very) amateur athlete, training for marathons, long bike trips and hikes. People Editorial Guidelines Updated on January 6, 2021 02:08 PM Share Tweet Pin Email Kim Kardashian West. Photo: Kim Kardashian/Instagram Kim Kardashian West is ready for a fresh start in 2021. To kick off the new year, Kardashian West and her sister Khloé Kardashian are partnering up to boost their health. "Sister Boot Camp starts this month!" Kardashian West, 40, posted on her Instagram Story on Tuesday. The mom of four said that she and Kardashian are upping their workouts and changing their diet for the month of January. "Plant based and two workouts a day for 30 days to get our mind and body right this year!" she explained. Kim Kardashian's Trainer Shares the Star's 'Bodybuilding' Diet and Exercise Routine: 'She's a Workhorse!' Kardashian West also shared a glimpse into their midday workout on Tuesday with her longtime trainer, Melissa Alcantara. After panning around her home gym, where Kardashian was working away on the treadmill, the KKW Beauty and Skims founder showed Alcantara wearing a crop top and short shorts. Kim Kardashian West and Khloé Kardashian. Kim Kardashian/Instagram "Sister workout, but this is what Melissa shows up in," Kardashian West says in the video. "This is very intimidating." RELATED VIDEO: Keeping Up with the Kardashians Ending After 20 Seasons: 'This Show Made Us Who We Are' Kardashian West started working with Alcantara in May 2017, after finding her on Instagram. Since then, Alcantara has pushed the reality star toward her fitness goals, including toning up after her pregnancies with daughter North, 7, and son Saint, 5 (daughter Chicago, almost 3, and son Psalm, 18 months, were born through surrogacy). Kim Kardashian 'Never Questions' Her Workout Program — Here's Her Trainer's Tips for Staying Fit "Just like anybody else, there are days where Kim's not really feeling it, but she will do it," Alcantara told PEOPLE in May. "Then there are a lot of days when she's killing it! She never questions the stuff that I make her do, she's just like, 'Okay,' and I love that."