Kim Kardashian believes she's in better shape than ever right now, and she's holding her head high.

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The 37-year-old Keeping Up with the Kardashians star is opening up about her recent dramatic weight loss.

"I've lost 20 lbs and I'm really proud of that. I was almost 140 forever and now I'm, like, 116 and it just feels good," Kim told E! News on Wednesday, according to Us Weekly.

"I didn't see results right away, but when you stick with something and you're consistent, you will. So I love it."

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Kim apparently attributes her success to trainer Melissa Alcantara, whom she's reportedly been working with every day.

So how did the mother of three slim down? The reality TV star and wife of Kanye West explained it took a lot of dedication when it came to both fitness and diet.

"I work out about an hour-and-a-half every single day, heavy weights. I don't do a lot of cardio," Kim revealed.

"But honestly, like even my mom [Kris Jenner] pulled me aside maybe a week ago and pulls me in a closet and is like, 'What are you doing?' She says, 'I don't care what, I just need to know.' I've been working out really hardcore with a bodybuilder for one year. September is our one-year anniversary."

Despite the occasional Haagen-Dazs ice cream -- which is apparently Kim's weakness in the form of dulce de leche, chocolate chip cookie dough, and cookies 'n' cream -- Kim has been eating pretty clean.

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"I've kind of been trained to just eat a lot healthier than I used to. I used to just eat anything and everything and I loved it," Kim explained to E! News, according to Us.
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"And so I really do control that now... I don't want to ruin it by just stuffing my face."

The Kardashians are always under scrutiny, regardless of whether they gain or lose a few pounds.

Last month, Kim faced backlash for bragging about her skinny figure during an Instagram Story video with her younger sister Kendall Jenner.

Kendall reportedly told Kim, "I'm really concerned. I don't think you're eating," to which Kim responded, "What? Oh, my God, thank you."

At the time, Kim shared with sister Khloe Kardashian that she was "down to 119 pounds."

Earlier this year, Melissa talked to People about Kim's exercise routine and lifestyle goals.

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"Kim told me, 'I love my body. I love the way it looks and I love my hips,'" Melissa said.

"She just wanted more muscle. She wanted bigger hamstrings, which accentuates the entire leg. And she wants those cut arms and abs!"

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Melissa said the mom of North, 5, Chicago, 8 months, and Saint, 2, devotes three days a week to leg workouts, that she tends to have a love/hate relationship with.

"She's committed! She knows what it takes, but it's also really grueling. It's heavy, it's killer, but she'll be like, 'Alright, let's do it!' She's a workhorse," Melissa told People.

A typical day of food reportedly includes blueberry oatmeal pancakes for breakfast; chicken, sweet potatoes and vegetables for lunch; and fish and vegetables for dinner.

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Processed foods, crackers and cookies are all off limits.