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Poor diet and lack of exercise: Survey reveals Americans unaware of colon cancer risk factors

Poor diet and lack of exercise: Survey reveals Americans unaware of colon cancer risk factors
Matthew Kalady, MD, reviews colorectal cancer cases with colleagues at The Ohio State University Comprehensive Cancer Center—Arthur G.James Cancer Hospital and Richard J. Solove Research Institute. As colorectal cancer rates continue to rise in those under 50, experts say it's important to know your risks and take preventive action. Credit: The Ohio State University Comprehensive Cancer Center—Arthur G. James Cancer Hospital and Richard J. Solove Research Institute

In a time of inactive workdays and rising obesity rates in America, most people don't know that what they eat, drink and how much they move can impact their risk for colorectal cancer, a highly preventable form of cancer that is affecting a growing number of people in their 30s, 40s and 50s.

Experts at The Ohio State University Comprehensive Cancer Center—Arthur G. James Cancer Hospital and Richard J. Solove Research Institute say this is especially concerning because rates of continue to rise in people under age 50 while continuing to go down in older people—largely due to cancer screening tests (colonoscopy).

"We know that screening colonoscopy saves lives by detecting the disease in its earliest and often precancerous state, but it's not recommended for a person of average risk before age 45 right now," said Matthew Kalady, MD, chief of colorectal surgery at the OSUCCC—James and professor at The Ohio State University College of Medicine.

In a time of inactive workdays and rising obesity rates in America, most people don't know that what they eat, drink and how much they move can impact their risk for colorectal cancer, a highly preventable form of cancer that is affecting a growing number of people in their 30s, 40s and 50s. Credit: The Ohio State University Comprehensive Cancer Center—Arthur G. James Cancer Hospital and Richard J. Solove Research Institute

Alcohol, obesity and diet are increasing risk for colorectal cancer

A recent survey commissioned by the OSUCCC—James found that, while most U.S. adults identify (DNA-based risk passed down through families) as a risk factor for colorectal cancer, other factors such as alcohol use, lack of physical activity and an American diet that is high in fat and processed foods were less known.

For this consumer survey, about 1,000 adults aged 18 or older were asked about their knowledge of for colorectal cancer. Results showed:

  • Less than half of respondents know that alcohol use is a risk factor (49%)
  • 2 in 5 don't know a is a risk factor (42%)
  • More than a third don't recognize obesity or an American diet (high fat, processed foods) as risk factors (38% and 37%)
  • 4 in 5 know family history is a risk factor

Black and Hispanic people at increased risk, know less about risk factors

Lack of knowledge about colorectal cancer risk factors was highest among Black and Hispanic individuals compared to white people. According to the American Cancer Society, Black Americans are more likely to develop and die of colorectal cancer. The organization also says incidence of this disease among Hispanic Americans is rising faster than any other racial/ethnic group. More awareness of the risk factors could encourage people to get screened or make that reduce the chances of developing colorectal cancer.

Colorectal cancers have been rising in people under 50 for two decades

According to data from the National Cancer Institute, rates of colorectal cancer have been rising since the 1990s in people under age 50. This is especially concerning since the U.S. Preventive Task Force only recently lowered the recommendation from age 50 to 45—which means that many people are developing cancers before screening is recommended.

"It's important for people to understand that many factors contribute to colorectal cancer risk, and it is never too late to make changes to help reduce risk where you have the power to do so. Those changes won't just impact your cancer risk, they will likely improve your health overall," said Kalady.

He said no one should discount the power of a healthy lifestyle. This includes eating a diet that is high in fiber, low in fat with limited red meat, and four to six servings of fruits and vegetables daily. This will help maintain a healthy weight and reduce inflammation.

"The more weight that you carry above your ideal weight puts you at a higher risk of developing colorectal cancer, so taking some simple but important steps—like a healthy diet and regular, moderate exercise—go a long way for overall health," Kalady said.

He noted that, while inherited risk is less common, it can greatly increase a person's lifetime risk for colorectal cancer for those impacted, so it is important to seek genetic counseling if appropriate.

Get symptoms checked, regardless of age

"People can do everything 'right' and still get cancer—that's why it's so important that anyone having symptoms of colorectal cancer seek medical advice right away, regardless of age. Early-stage cancer is highly treatable and often completely curable. The chance for cure goes down with advanced disease," said Kalady.

Some of the more common symptoms of the disease include rectal bleeding, sudden changes in bowel habits, unexplained weight loss and abdominal/bowel pain.

Citation: Poor diet and lack of exercise: Survey reveals Americans unaware of colon cancer risk factors (2024, February 26) retrieved 21 June 2024 from https://medicalxpress.com/news/2024-02-poor-diet-lack-survey-reveals.html
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