A growing number of young adults are being diagnosed with gastrointestinal (GI) cancers, and researchers are pointing to unhealthy lifestyle patterns as a major cause.
A new peer-reviewed study published in the British Journal of Surgery links the increase to the “Western-pattern diet” and a sedentary way of life—factors more influential than genetics in this trend.
Dr. Sara Char of Dana Farber Cancer Institute highlights several risk contributors: obesity, alcohol use, smoking, and physical inactivity.
These habits, combined with diets rich in processed meats, sugary drinks, and refined grains, are associated with increased risk—especially for colorectal cancer, the most common early-onset GI cancer.
Alarming trends also include rises in pancreatic, gastric, esophageal, biliary, and appendiceal cancers in adults under 50.
Those born in 1990 face double the colon cancer risk and quadruple the rectal cancer risk compared to people born in 1950, research shows.
Though overall cancer rates in young people remain relatively low, oncologists urge better dietary choices and increased physical activity as preventive measures.
Regular screenings starting at age 45 and timely attention to symptoms such as abdominal pain, rectal bleeding, or unexplained weight loss are also critical.
Ongoing research is needed to identify exactly how diet, alcohol, and supplements impact cancer development in younger populations. In the meantime, health experts advocate avoiding smoking, limiting red meat, managing weight, and exercising regularly to reduce cancer risk.
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