Kim Kardashian has made no secret about the fact that she wants to lose 15-20 pounds following the birth of her one-year-old daughter, North. The reality star recently posted an older picture of herself on Instagram from five years ago, when she was 28-years-old, and while she was definitely thinner, fans are questioning whether or not she needs to shed so much weight.

 Her current trainer, Joey Gonzalez, who works at Barry's Bootcamp, told Radar Online about her intense workouts, and how she plans on dropping the weight. "Kim has been coming in quite regularly lately," he said. "We focus on different areas of the body each day and Kim has been frequenting every class to make sure she gets a full-body workout."

Kardashian is also tweaking her diet. She will likely go back on the Atkins diet, which apparently worked wonders for her after the birth of North. She has praised the meal plans the diet recommends. 

Let’s take a look back at Kardashian since 2006. Do you agree that she needs to slim down?

Kim Kardashian in 2006

Kim Kardashian in 2007

Kim Kardashian Kim Kardashian arrives for the Chelsea Paint The Town Blue party in Beverly Hills in Los Angeles July 18, 2007. Photo: Reuters

Kim Kardashian in 2008

Kim Kardashian Socialite Kim Kardashian arrives at the MTV Australia Awards at the Australian Technology Park in Sydney April 26, 2008. Photo: Reuters

Kim Kardashian in 2009

Kim Kardashian Reality star Kim Kardashian arrives at the 61st annual Primetime Emmy Awards in Los Angeles, California September 20, 2009. Photo: Reuters

Kim Kardashian in 2010

Kim Kardashian Television personality Kim Kardashian arrives at the E! 20th Birthday Celebrating Two Decades of Pop Culture, in West Hollywood, California, May 24, 2010. Photo: Reuters

Kim Kardashian in 2011

Kim Kardashian Kim Kardashian arrives at the Do Something Awards in Los Angeles, California August 14, 2011. Photo: Reuters

Kim Kardashian in 2012

Kim Kardashian Socialite and reality TV star Kim Kardashian poses as she arrives to attend an event celebrating the 40th anniversary of Cosmopolitan magazine at a hotel in Mexico City October 4, 2012. Photo: Reuters

Kim Kardashian in 2013

Kim Kardashian Kim Kardashian attends Dream For Future Africa Foundation Inaugural Gala in Beverly Hills, California, October 24, 2013. Photo: Reuters

Kim Kardashian in 2014

Kim Kardashian and Kanye West Kim Kardashian and Kanye West arrive at the Metropolitan Museum of Art Costume Institute Gala Benefit celebrating the opening of "Charles James: Beyond Fashion" in Upper Manhattan, New York, on May 5, 2014. Photo: Reuters/Carlo Allegri