Stephanie Buttermore, a fitness influencer and doctor who researched ovarian cancer throughout her career, died at the age of 36, her fiancé and fellow fitness YouTuber Jeff Nippard, announced Friday.

Buttermore, a cancer research Ph.D., died at the age of 36, her fiancé, Jeff Nippard, a bodybuilder, announced earlier this year. Here's what we know about her heartbreaking passing.

Fitness influencer Stephanie Buttermore tragically died in March 2026 at the age of 36. “It is with profound sorrow that we share the sudden passing of Jeff’s fiancée and partner of 10 years, ...

Social media is in shock following the sudden death of Dr. Stephanie Buttermore, a renowned fitness influencer and renowned cancer research scientist. The news was announced on Friday, March 6, by her ...

This morning, March 6, Nippard's team shared the sad news of Stephanie Buttermore's death on Instagram. She was 36 years old. The reason for her death has not been made public. “It is with profound ...