Jeff Nippard’s team announced on Instagram on March 6 that his fiancée, fitness influencer Stephanie Buttermore, had suddenly passed away at age 36, with no cause of death disclosed.
Buttermore had celebrated her birthday on February 25 and appeared happy in a Valentine’s Day post with Nippard just weeks earlier.
The statement mourned her warmth, family devotion, and PhD research on ovarian cancer, while requesting privacy for Nippard.
A former fitness creator with 525K Instagram followers and over 1 million YouTube subscribers, she stepped away from social media in May 2024 to prioritize her mental health.