Within the past month, Michael Weatherly has undergone quite the body transformation by losing 35 pounds from his 6'2" frame. According to ET Online, Weatherly was encouraged to shed the extra weight in part by his friends on the set of NCIS and also while training for the Nautica Malibu Triathlon.

The 46-year-old actor told People Magazine that he got so heavy during season 11 of NCIS that he "split five pairs of pants." He added, "I have two very small children, ages 2 ½ and 1-year-old. That means I had been living with a pregnant lady for a long time. While my wife [Bojana Jankovic] never gave in too much to her Nutella craving, we weren't doing too much. And I found it very hard to say to my wife and children [Olivia and Liam] that I need to spend a couple of hours on me. And the job was demanding," revealing how he gained weight earlier on.

Finally, at the end of season 11, Weatherly turned to trainer Juliet Kaska, who encouraged him to cross-train with sports like swimming and boxing. Now, Weatherly swims in the ocean regularly. He stated, "I do it every weekend... I love it. You become very alive when you are in the ocean."

Weatherly's new diet also eliminated many carbohydrates. He commented, "No food that comes from a package like potato chips... I stayed away from pasta, rice, bread, and potatoes... anything that's fun to eat, I did not eat. And I pulled way back on alcohol consumption." His diet and exercise regime definitely took serious commitment - Weatherly added, "I learned that if you say you're meeting someone at 8 a.m. on a Sunday, you have to show up."

Everything worked out well, though! Weatherly completed the Nautica triathlon on September 14 alongside other celebrities like Teri Hatcher. He stated, "I discovered great things about myself at this stage in life...you have to take time for yourself, whether it's reading a book or going for a walk or just spending some time talking to a cat. At a certain age, you have to take care of yourself. No one is going to do it for you."