Here’s a startling fact: colon cancer, once considered a disease of the elderly, is now increasingly striking young adults, leaving experts baffled and communities concerned. But why is this happening, and what does it mean for the future of public health?
Take Umanita’s story, for instance. Just two weeks after experiencing her first abdominal pain, she was diagnosed with colon cancer. Her experience thrust her into a growing group of young adults facing a disease they never imagined would touch their lives. “It felt like a nightmare,” Umanita recalled. “It just didn’t feel real.”
For years, researchers have observed an alarming rise in colorectal cancer among younger individuals, a trend that can’t be fully explained by increased awareness or screening alone. According to the American Cancer Society, people under 55 accounted for one-fifth of the 145,000 new colorectal cancer diagnoses in 2019—double the rate from 1995. And this is the part most people miss: by 2024, it became the leading cause of cancer deaths in men under 50 and the second leading cause in women of the same age group.
Scientists are zeroing in on potential culprits, with diet—particularly ultraprocessed foods—emerging as a key suspect. These foods, often high in sugar, salt, saturated fats, and additives, have been linked to various health issues. Health Secretary Robert F. Kennedy Jr. has gone so far as to call them ‘poison,’ contributing to the nation’s rising health problems. In response, new dietary guidelines now urge a ‘dramatic reduction’ in their consumption.
Boston’s academic medical centers are leading the charge in researching the role of ultraprocessed foods in cancer development. A recent study by MGB researchers found a troubling connection: individuals who consumed high levels of these foods were 45% more likely to develop precancerous polyps in the colon. But here’s where it gets controversial: while diet is a significant factor, it’s not the only one. Other theories, from microplastics to the COVID-19 vaccine, have been floated, though many lack scientific backing.
Umanita’s case is a prime example of this complexity. With no obvious genetic predisposition, everyone in her life had an opinion on what caused her cancer. “They try to look for an answer,” she said, “but I don’t have one.” Her journey highlights the multifaceted nature of this disease, which likely results from a combination of factors—some known, others still mysterious.
What’s equally striking is how young patients like Umanita often ignore subtle symptoms like abdominal pain, irregular bowel movements, or bloody stool. By the time they seek help, they’re often sicker than older patients with the same diagnosis. And this raises a critical question: Can years of unhealthy eating habits be undone, or is the damage irreversible? That’s what researchers like Dr. Andrew Chan at Mass General are determined to find out.
Umanita’s resilience is inspiring. Despite her diagnosis, she continued her studies, worked as a teaching assistant, and even participated in research—all while undergoing treatment. “Thinking of it as the end of a journey is not accurate for me,” she said. “It’s the beginning of something else.”
Her story leaves us with a thought-provoking question: As we grapple with rising colon cancer rates in young adults, how much can we control through lifestyle changes, and how much remains beyond our reach? What’s your take? Do you think diet is the primary culprit, or are there other factors at play? Let’s discuss in the comments.
