Ashton Kutcher revealed a new milestone after applying changes in his lifestyle due to a health scare.

Ahead of the 2022 TCS New York City Marathon, Kutcher already started training himself and immediately saw a dramatic transformation.

On Monday, he told Entertainment Tonight that he had already lost around 12 pounds after successfully transferring his muscle mass from his upper body to his lower body through his workouts. He added that his wife, Mila Kunis, made it possible and easier by becoming his support.

"Surrounding myself with a support system makes hard things much easier. Setting a pace that you can sustain is not the same as working as hard as you can," Kutcher said.

The 44-year-old actor added that his loved ones continue to offer motivation and support in the past months.

Aside from the upcoming marathon, Kutcher is also gearing up to launch his 16=part series, "Our Future Selves." Kenny Chesney, Natalie Portman, Kim Kardashian, and more stars run alongside the actor while learning what motivates them in their lives.

The trailer of the series also shows Thomas Rhett, Jon Batiste, Chris Paul, and more who train with him.

Ashton Kutcher's Health Issues

Before his recent weight loss, Kutcher publicized his battle against a rare autoimmune condition.

Vasculitis, per the American College of Rheumatology, is a term used to describe a group of diseases that lead to inflammation of blood vessels. NBC News noted that it could be life-threatening and hard to diagnose.

Dr. David Goddard, New York University Grossman School of Medicine's rheumatologist and clinical professor of medicine, said that vasculitis can be tough to deal with.

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Kutcher disclosed his diagnosis during an episode of National Geographic's "Running Wild with Bear Grylls: The Challenge." At that time, he revealed that the health issue knocked out his vision and whole equilibrium.

Fortunately, he recovered a year later and expressed how lucky he is to be alive after surviving it.

He was also hospitalized while working on the "Steve Jobs" biopic after following the late business mogul's diet. Kunis told First We Feast's "Hot Ones" that her husband was hospitalized twice became of the "dumb diet."

While preparing for the role, Kutcher reportedly consumed grapes alone. With that, he ended up suffering pancreatitis twice.

The actor also shared details about it to USA Today, saying that he did a fruitarian diet.

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