Kailyn Lowry has debuted before and after photos of her weight loss.

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Since the birth of her second son, Lincoln Marshall Marroquin, the Teen Mom 2 star has been hitting the gym hard in an effort to get into better shape, and according to her latest photos, she's done just that.

"First week of October on the left and last week on the right," she captioned the photos. "Nothing is harder than getting my eating habits down. It's been a long and slow process. Still trying to kick my addiction to food but working on it, and working out, nonetheless."

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Lowry and her husband, Javi Marroquin, welcomed their first child together (Lowry has an older son, Isaac, from her previous relationship with Jo Rivera) in Nov. 2013, just one month after they were married.

At the end of last year, as Lincoln turned one-year-old, the Teen Mom 2 star revealed she lost over 30 pounds on Twitter.

"Went to the doc today. I've lost 36 lbs since the day Lincoln was born. 25 lbs to go!" she told fans.

According to In Touch Weekly, Lowry lost weight with the help of a personal trainer, healthy eating and regular exercise.

Kailyn Lowry and her husband will be appear on the upcoming season of Teen Mom 2, which, judging by many social media photos, begun filming recently. The series also includes Jenelle Evans, Chelsea Houska and Leah Messer.

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