Cancer deaths tied to obesity have skyrocketed, especially in vulnerable groups like women and rural communities.
Obesity
is now fueling a silent but deadly surge in cancer deaths across the U.S., with
new research revealing that fatalities tied to obesity-linked cancers have
tripled over the past two decades.
The spike hits women, older
adults, Black and Native American populations, and rural communities the
hardest. With 13 different cancers now tied to excess weight—including breast,
colon, and pancreatic—the findings spotlight a growing public health emergency
that’s both preventable and urgent. Researchers say this trend underscores a
clear need for earlier screenings and greater access to care.
Alarming Rise in Obesity-Linked
Cancer Deaths
A new
study presented at ENDO 2025, the Endocrine Society’s annual conference in San
Francisco, California, shows that cancer deaths related to obesity in the
United States have tripled over the last 20 years.
Researchers
analyzed more than 33,000 deaths caused by cancers associated with obesity.
Their findings showed a steep rise in mortality, with the most significant
increases seen among women, older adults, Native Americans, and Black
Americans.
A Call for Public Health Action
“Obesity
is a significant risk factor for multiple cancers, contributing to significant
mortality,” said lead researcher Faizan Ahmed, M.D., of Hackensack Meridian
Jersey Shore University Medical Center in Neptune City, N.J. “This research underscores
the need for targeted public health strategies such as early screening and
improved access to care, especially in high-risk rural and underserved areas.”
Obesity
is widespread in the U.S., affecting 40.3% of adults, according to the Centers
for Disease Control and Prevention (CDC). It is considered a complex disease
influenced by a mix of genetic, hormonal, physiological, environmental, and
developmental factors.
Beyond
cancer, obesity increases the likelihood of developing several chronic health
conditions, including high blood pressure, elevated cholesterol, prediabetes,
type 2 diabetes, heart disease, and both chronic and end-stage kidney disease.
13 Cancers Tied to Obesity
Obesity
is associated with a higher risk of developing 13 types of cancer, according to
the CDC. These cancers make up 40% of all cancers diagnosed in the United
States each year.
They
are:
- Adenocarcinoma
of the esophagus
- Breast
(in women who have gone through menopause)
- Colon
and rectum
- Uterus
- Gallbladder
- Upper
stomach
- Kidneys
- Liver
- Ovaries
- Pancreas
- Thyroid
- Meningioma
(a type of brain cancer)
- Multiple
myeloma
Mortality Data Reveals Stark
Trends
Faizan
used mortality data from the CDC to analyze 33,572 U.S. deaths from
obesity-associated cancers between 1999 and 2020. He found age-adjusted
mortality rates increased from 3.73 to 13.52 per million over two decades, with
steep increases among women, older adults, Black people, Native Americans, and
rural populations.
Regionally,
the Midwest had the highest rate of obesity-related cancer deaths, while the
Northeast had the lowest. State-level analysis revealed that Vermont,
Minnesota, and Oklahoma had the highest rates, while Utah, Alabama, and
Virginia had the lowest.
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