A new study from the Institute of Cancer Research reveals that obesity is a significant factor in the rising rates of 11 types of cancer among young adults in England. This alarming trend challenges the longstanding belief that traditional risk factors like smoking and diet are the primary culprits.
Key findings:
- 11 types of cancer are on the rise in individuals aged 20 to 49 in England.
- Approximately 31,000 cancers were diagnosed in this age group in 2023.
- The cancers linked to obesity include thyroid, multiple myeloma, liver, kidney, gallbladder, colorectal, pancreatic, endometrial, oral, breast, and ovarian cancers.
- Bowel cancer rates among younger women linked to BMI increased from 0.9 to 1.6 per 100,000 people.
- For nine of the eleven cancers, rates are increasing among both younger and older adults.
This study utilized national cancer registry data spanning from 2001 to 2019. The findings have raised eyebrows among experts who note that while smoking rates have fallen by around two percent annually over the past two decades, the incidence of these cancers continues to climb. Professor Montserrat García‑Closas pointed out that “our findings show that while cancer rates are rising in younger adults, the trends are unlikely to be explained by changes in most known behavioural risk factors.”
Despite these rising numbers, officials caution that cancer remains a rare disease among young people. However, Professor Kristian Helin emphasizes the urgent need for public health policies aimed at tackling obesity across all ages. He stated that “tackling obesity… could slow the rise in cancer and prevent many cancers – and must become a national priority.”
Yet uncertainties linger. The exact causes behind this spike in cancer rates remain unclear and require further research. As we delve deeper into understanding these trends, one thing becomes evident: addressing obesity is pivotal to reversing this disturbing trajectory.