Kirstie Alley's Battle of the Bulge

Kirstie Alley has become well known for her public struggles with weight, gaining and losing a combined 158 pounds in the past few years. The actress will soon document her struggles in a new reality show for A&E network. (Source: Reuters)

Kirstie Alley during her run on "Cheers" in the 1980s. Alley, a former swimmer, has said she often felt fat, despite appearing trim and fit to fans during her years on the hit show. (NBC)

After gaining weight over the course of several years, Alley signed on as a spokeswoman for Jenny Craig in the hopes of conquering her battle of the bulge. Here she is seen in 2005 when she began losing weight. (Source: Reuters)

Kirstie Alley was cranky in 2005, evidently. <a href="http://www.x17online.com/gallery/index.php?tab=by_celebrity&amp;celebrity=Kirstie+Alley">(Source: X17. Click here for more Kirstie photos.)</a>

Kirstie Alley, on her way down the scale in 2005. <a href="http://www.x17online.com/gallery/index.php?tab=by_celebrity&amp;celebrity=Kirstie+Alley">(Source: X17 Online. Click here for more Kirstie photos)</a>

Kirstie showed off a voluptuous look here in 2007, coming close to her ultimate goal as the Jenny Craig spokeswoman. Source: Reuters

Alley ultimately dropped 75 pounds with Jenny Craig and wasn't afraid to show it off in tight dresses and even a bikini on "Oprah!" Source: Reuters

Kirstie Alley was back on the cover of People Magazine last fall because of her weight issues, claiming her love of butter contributed to her extreme weight gain. Source: Reuters (People)

Kirstie Alley, shown earlier this year, after gaining 85 pounds. <a href="http://www.x17online.com/gallery/index.php?tab=by_celebrity&amp;celebrity=Kirstie+Alley">(Source: X17. Click here for more photos)</a>

Kirstie Alley in "Star Trek II: The Wrath of Khan" in 1982. ( )

Kirstie Alley starred in the HBO series "Fat Actress" in 2005. (HBO)