In the wake of their sister Paloma's death due to cancer after refusing treatment influenced by their mother’s conspiracy theories, Gabriel and Sebastian Shemirani blame the growing prominence of medical misinformation on social media. Experts warn of the dangers posed by such beliefs, highlighting an increasing trend towards alternative therapies among vulnerable individuals.
The Dark Consequences of Medical Misinformation: A Sister's Tragic Story

The Dark Consequences of Medical Misinformation: A Sister's Tragic Story
The Shemirani family's ordeal illustrates how the spread of anti-medicine conspiracy theories can have fatal consequences, drawing attention to the urgent need for stricter measures against misinformation.
The Shemirani family has become a poignant example of the tragic impact that medical misinformation can have, particularly as it gains traction in popular culture. Gabriel and Sebastian Shemirani watched closely as their mother, Kate, rose to notoriety after being deregistered as a nurse for spreading Covid-19 misinformation. Their younger sister, Paloma, was later diagnosed with cancer, and faced with the recommendation of chemotherapy, she ultimately chose to refuse treatment based on her mother's anti-medicine beliefs, leading to her untimely death at age 23.
The brothers lay much of the blame for Paloma's choice on their mother's conspiracy theories, which they assert played a significant role in shaping her decisions as she battled the disease. Kate Shemirani has not directly addressed these accusations but claimed instead that the National Health Service (NHS) was at fault for Paloma's death, asserting that her daughter succumbed due to medical interventions she deemed unnecessary. Nonetheless, the BBC has found no evidence to substantiate this.
Gabriel lamented, “I wasn’t able to stop my sister from dying, but I hope that by sharing our experience, it could save someone else.” As both brothers reached out, they expressed their intention to raise awareness about the perilous nature of medical misinformation proliferating online, urging social media platforms to take a stand against it.
Experts echo their concerns, noting the roles of influential figures, such as Robert F. Kennedy Jr., in normalizing harmful alternative health theories. Dr. Tom Roques, vice-president of the Royal College of Radiologists, stated, "I think the risk is that more harmful alternative treatments are getting more mainstream. That may do people more active harm."
The Shemirani siblings recounted their upbringing in a household rife with conspiracy theories. Their mother's fascination with alternative health narratives intensified after she was diagnosed with breast cancer in 2012. Drawing on her experience, Kate portrayed her recovery as a triumph of natural therapies, which inadvertently influenced Paloma, as noted by friends who recounted Paloma’s belief in her mother's methods.
As the narrative unfolded, the encouragement of alternative treatments over medical intervention came to a stark head when Paloma rejected chemotherapy following a diagnosis of non-Hodgkin lymphoma, despite a medical team informing her that there was a substantial chance for recovery with treatment. Following significant influence from her mother and other alternative health advocates, Paloma chose to pursue Gerson therapy instead.
Paloma's deteriorating health drew concern from friends who noticed alarming changes, while the brothers felt increasingly helpless as they sought to intervene. The narrative is further complicated by Kate's imposing role, which friends noted led Paloma to distance herself from those suggesting traditional treatment options.
Tragically, after months of suffering, Paloma died from a heart attack caused by her tumor, leaving Gabriel and Sebastian to process their grief and bewilderment over the circumstances of her death. Their parents have generated additional controversy surrounding their interpretation of the events, with Kate claiming an elaborate medical cover-up.
An inquest into Paloma's death is pending, but for Gabriel and Sebastian, the tragedy symbolizes a larger issue. Both brothers continue to advocate for stricter rules around medical misinformation and emphasize that the spread of false health narratives can have real, devastating consequences, raising alarm about the vulnerability of individuals in the face of deceptive health-claims. In the battle against conspiracy theory culture, the loss of Paloma serves both as a lament and a cautionary tale.