Melissa Joan Hart successfully loses 40 pounds

Melissa Joan Hart, star of the hit ABC comedy series "Mel & Joey," recently revealed her 40-pound weight loss to Entertainment Tonight.

Joan Hart gave birth to her third son, Tucker, in late 2012 and has been struggling to lose weight ever since. Now, the 37-year-old actress said on the show that she feels "pretty amazing."

Entertainment Tonight was on set to watch her shoot a commercial for Nutrisystem - a weight loss system aimed at providing both men and women with effective diet plans and weight loss tips.

Melissa told ET of posing in a one-piece blue swimsuit: "I felt prepared. I don't wear bikinis even when I go to the beach, so when I put it on in front of the cameras and all these people, and my husband showed up - it's nerve-wracking but the feeling is very satisfying."

During her third pregnancy, Joan Hart gained as much as 60 pounds. She also admitted that she took her time shedding the weight.

"For me, it was important to bond with my child, as opposed to 'lose the weight.' So I waited until I was ready, and I knew I had the time, and then I made it a priority that I would eat well," she said.

Now, the actress shares that she is happier with her figure and said that she loves where she's at. Her husband Mark has also been very supportive of her weight loss every step of the way.

"He is the guy who is disciplined," she said. "His whole thing is stick to it, be healthy, be fit and he does it for me. I had three babies for him, but I also wanted to look fantastic into my 40s."