Tragic Details Revealed: Diane Keaton Cause of Death and What We Know So Far

Diane Keaton’s cause of death remains unconfirmed, but new revelations from those closest to her are shedding light on the heartbreaking final chapter of the beloved actress’s life. The Oscar-winning star of “Annie Hall,” “The First Wives Club,” and “The Godfather” died on October 11, 2025, in Los Angeles at the age of 79.

While official details are still limited, close friends and family have shared deeply personal accounts of Keaton’s final weeks, pointing to significant weight loss, a sudden decline in health, and changes in her behavior that may hold clues to what led to her death.

Diane Keaton Cause of Death: New Clues Emerge

Keaton passed away in her Los Angeles home, where emergency responders were called at approximately 8:08 a.m. on October 11. The Los Angeles Fire Department confirmed that a 79-year-old woman was transported to a local hospital after a medical emergency. TMZ reported that dispatch audio from the incident included the message, “Rescue 19, person down,” confirming the severity of the situation.

Her spokesperson announced her death in a brief statement, asking for privacy while offering no further details. The lack of official information has fueled speculation, but those closest to Keaton have provided insight into her health and emotional state in the months leading up to her passing.

Carole Bayer Sager, Keaton’s longtime friend and an Oscar- and Grammy-winning songwriter, shared in an interview with People that she was shocked by Keaton’s appearance just weeks before she died. “I saw her two or three weeks ago, and she was very thin,” Sager revealed. “She had lost so much weight.”

Sager explained that Keaton had spent time in Palm Springs while her home was being repaired and returned noticeably frailer. “She was still happy and upbeat, taking photographs of everything she saw,” Sager said. “She never stopped creating. She was such a magic light for everyone.”

Sudden Health Decline and Private Final Months

Friends say Keaton’s health took a sharp and unexpected turn in the months before her death. “She declined very suddenly, which was heartbreaking for everyone who loved her,” a source close to the actress told People. “It was so unexpected, especially for someone with such strength and spirit.”

In her final months, Keaton was reportedly surrounded only by close family members. Even longtime friends were not fully aware of the severity of her condition, as her inner circle chose to keep details private.

In a surprising move that hinted at changes in her life, Keaton listed her beloved dream home for $29 million in March 2025. Those close to her said the decision was unusual, as she had long planned to live there permanently.

Throughout her life, Keaton was open about her health battles. She publicly discussed her struggle with bulimia, telling Dr. Oz in 2014 that she consumed up to 20,000 calories before inducing vomiting at the height of her eating disorder. “I’m an addict in recovery, and I’ll always be an addict,” she said.

She also faced repeated battles with skin cancer, including basal cell carcinoma in her 20s and squamous cell carcinoma later in life. “It’s a family history,” she told the Los Angeles Times in 2015. “My father had basal skin cancer and my brother had it. That’s why you’ve got to put the sunblock on.”

Though her official cause of death has not been confirmed, the reports of significant weight loss, a sudden health downturn, and a deeply private final chapter all suggest that Keaton may have been contending with serious underlying medical issues.

Hollywood Mourns a Legend

Diane Keaton’s passing marks the end of one of Hollywood’s most celebrated careers. Born in Los Angeles in 1946, she became one of the defining actresses of her generation, earning an Academy Award for her iconic performance in “Annie Hall” and countless other honors, including BAFTA and Golden Globe Awards.

Her unique style, charm, and creativity extended beyond acting into photography, writing, and producing. Friends and colleagues remember her as a trailblazer who lit up every room she entered and continued to inspire creativity in those around her.

Though the world still awaits official word on Diane Keaton’s cause of death, the signs from her final months offer a deeply human and heartbreaking picture of a woman who gave everything to her art — and whose light continues to shine even after her passing.

FYI (keeping you in the loop)-

Q1: What is Diane Keaton’s cause of death?

Her official cause of death has not been released. Friends reported sudden weight loss and a rapid health decline before she passed away.

Q2: When did Diane Keaton pass away?

She died on October 11, 2025, in Los Angeles, California, at the age of 79.

Q3: What were Diane Keaton’s known health issues?

Keaton struggled with bulimia earlier in life and battled both basal cell and squamous cell skin cancers, which required multiple surgeries.

Q4: Who shared details about her final weeks?

Her close friend Carole Bayer Sager revealed that Keaton appeared very thin and had lost significant weight shortly before her death.

Q5: What is Diane Keaton’s legacy?

She was a trailblazing actress, winning an Oscar and numerous awards for her work in film and theater. Her influence on Hollywood remains unmatched.