Fitness influencer Jeff Nippard shared the heartbreaking news of his fiancée, Dr. Stephanie Buttermore‘s, unexpected passing on Instagram on March 6, 2026.
The post didn’t state how Dr. Buttermore died, and his team requested privacy for his fans and family. He was 36 years old.
We are deeply saddened to announce the unexpected death of Jeff’s fiancée, Stephanie, who was also his partner of ten years.
Jeff loved Stephanie very much, and she will be deeply missed. She was a warm, caring person who cherished her family and dedicated her work to researching ovarian cancer.
We are heartbroken and ask for privacy as we grieve. We appreciate your support and understanding.
View this post on InstagramA post shared by Jeff Nippard (@jeffnippard)
Fans mourn death of beloved influencer and researcher Dr. Stephanie Buttermore
Dr. Buttermore and Nippard were together for ten years. Dr. Buttermore was highly educated, earning a bachelor’s degree in Micro/Molecular Biology and three master’s and doctoral degrees – all in medical sciences, with a focus on pathology and cell biology – from the University of South Florida.
Dr. Buttermore typically used social media frequently, but she stopped posting on her own Instagram in 2024. The last time she appeared on Instagram was in a post on Nippard’s account on February 14, 2026.
Dr. Buttermore, much like her fiancé, was dedicated to health and fitness. She used her social media platforms to share science-based advice on exercise and healthy eating, according to her website.
View this post on InstagramA post shared by Stephanie Buttermore, Ph.D. (@stephanie_buttermore)
According to a post on Instagram by Nippard, she was researching ovarian cancer, with a focus on finding ways to detect it early and understanding how the disease develops at a molecular level.
Dr. Buttermore found that increased levels of a protein called RHAMM appear in cells, tissues, and urine, potentially allowing for early detection of ovarian cancer through simple urine tests.
People are sharing messages of support and sympathy for Jeff Nippard after the sad news, including heartfelt posts like, “Stay strong, Jeff. I’m so sorry to hear this.”
“I love you Jeff. I can’t imagine what you’re going through. Prayers for you,” another said.
Someone wrote to Jeff, saying he’s a big inspiration and expressing sympathy for whatever he’s dealing with, ending with a warm message of support.
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2026-03-07 03:49