Jack Black, known for his comedic brilliance and high-energy performances, has recently taken to social media to share his new commitment to fitness. However, experts are raising concerns about the actor’s health risks due to abdominal obesity, urging him to prioritize medical guidance as he embarks on his weight-loss journey.
The 55-year-old Jumanji star posted a video on Instagram showcasing his gym routine, which included lifting dumbbells and embracing the grind. Black humorously quipped, “It’s about keeping up with the Dwayne ‘The Rock’ Johnsons of the world,” referring to his famously fit co-star. While fans applauded his efforts, medical professionals emphasized the need for caution.
Aiming for Weight Loss, But Risks Remain
Sources close to Black reveal that he has committed to shedding 30 to 50 pounds under the guidance of professionals. The actor, who reportedly weighs 250 pounds, has decided to maintain his weight loss with a balanced diet and exercise regimen.
“He’s swearing this time it’s for real,” an insider said. “Jack knows he can’t go on carrying that much weight around his belly, and everyone is cheering him on.”
Despite the support, health experts warn that abdominal obesity poses significant health threats. Florida-based longevity expert Dr. Gabe Mirkin, who has not treated Black, expressed concerns about potential complications. “He has massive abdominal obesity, which likely indicates he’s diabetic or prediabetic. This significantly increases his chances of a heart attack,” Dr. Mirkin stated.
He added that while exercise is beneficial, it must be paired with strict dietary control and possibly medication. “Black needs to consult a doctor immediately. A physician might also prescribe heart attack-prevention medication,” Mirkin advised.
Commitment to Change After Previous Setbacks
The Kung Fu Panda star’s decision to focus on fitness comes after years of fluctuating weight. In 2023, Black stripped down for charity, displaying his comedic side and carefree attitude. However, this public display also highlighted his long-standing struggle with weight management.
Health professionals agree that Black’s dedication to change is commendable, but stress the importance of medical supervision. Exercise alone may not address the underlying health issues associated with his weight. Experts recommend regular check-ups and a carefully monitored fitness plan to ensure long-term health benefits.
As Black embraces his New Year’s grind, fans are hopeful he will achieve his goals while heeding medical advice. For now, the beloved actor remains optimistic, bringing his signature humor and determination to his fitness journey.

Jaja has a degree in journalism and took classes in international law and business communication. Her career spans roles at prominent international media outlets, including International Business Times, Celebeat and Delightful Philippines. As a news editor, Jaja covered a wide range of beats, including legal, business, economy, cryptocurrency, personal finance, gaming, technology, and entertainment.