"To feel good, I just want to get it like, a really good goal weight and so that means working out at all costs," she said. "It's my eating. I work out but it's like my eating. But Melissa and I have a major goal for by the time I'm 40."
And the reality star means business!
The next morning the 39-year-old was at it again, posting another gym story to Instagram.
"A morning workout after a night workout is the best!!!" she wrote.
Last year, Kim – who weighed 119 pounds (53 kilos) came under fire for posting a potentially triggering comment for eating disorder sufferers.
Sharing a video on Instagram stories from an outing with sisters Khloe Kardashian and Kendall Jenner. In the video, the two tell Kim she looks skinny and Kendall says she thinks she's not eating. Kim replies, "What? What? Oh my God, thank you!"
"I honestly, looking back in having said that, I 100 percent completely understand where people would be coming from that felt that way," Kim said on the first episode of the Pretty Big Deal with Ashley Graham podcast.
"So my intention is never to offend anyone and I really, you know, apologise if I offended anyone, because an eating disorder is- I know people that have serious eating disorders that have been in and out of the hospital for 15 years—close people. So I've like, been through- I have experienced it enough to have, like, known better."
At the time, Kim had spent a year working out six days a week with a personal trainer.