Stephanie Buttermore Dies At 36: Fitness Influencer Stephanie Buttermore Has Died, Cause Of Death

Stephanie Buttermore, beloved fitness influencer, scientist, and advocate for body positivity, has died suddenly at the age of 36, leaving behind a legacy that reached millions around the world. Her passing was confirmed by her fiancé of ten years, fellow fitness creator Jeff Nippard, who shared the heartbreaking news in March 2026. No cause of death has been publicly disclosed.

Born on February 25, 1990, Stephanie was admired for blending intelligence, authenticity, and compassion in a space often dominated by superficiality. She earned advanced scientific credentials and conducted important ovarian cancer research, including work focused on early detection methods. Her academic accomplishments reflected the same dedication and discipline that later defined her public career. Stephanie became widely known through her YouTube and Instagram platforms, where she shared evidence-based fitness advice and candid insights into health, nutrition, and mental wellness. She inspired many through her openness about anxiety, body image struggles, and her transformative “All In” journey, encouraging countless followers to pursue healing over perfection. Her honesty helped redefine conversations around women’s health and self-acceptance.

To those who knew her personally and those who knew her through a screen, Stephanie was remembered for her warmth, generosity, and ability to make others feel seen. Tributes poured in from fans, athletes, and colleagues who credited her with changing lives through knowledge and kindness.

She is survived by Jeff Nippard, her family, friends, and a global community forever shaped by her courage and compassion.

Stephanie Buttermore will be remembered not only for what she achieved, but for how deeply she cared.