Higher consumption of ultra-processed foods may be linked to an increased risk of developing and dying from cancer, according to a new study based upon the health records of nearly 200,000 people in the United Kingdom.
Most soft drinks, mass-produced packaged breads, breakfast cereals, sweet packaged snacks, and ready-to-eat meals fall under this category.
“UPFs contain little or no whole foods and are often energy dense, high in salt, sugar and fat, low in fibre, and liable to overconsumption,” the scientists note. “They are aggressively marketed with strong brands to promote consumption and are gradually displacing traditional dietary patterns based on fresh and minimally processed foods.”
Health Effects Over Time
During a 10-year follow-up period, 15,921 of them developed cancer, with 4,009 cancer deaths.The analysis revealed a correlation between higher consumption of UPFs and a greater risk of developing cancer, especially ovarian and brain cancers. Specifically, for every 10 percent increase of UPFs in one’s diet, there was a corresponding 2 percent overall increase in cancer risk, with ovarian cancer showing a particularly greater increase in risk at 19 percent.
Similarly, the results showed that the risk of dying from cancer also increased with higher UPF intake.
For each 10 percent increase in UPF consumption, the overall cancer death risk grew by 6 percent, alongside a 16 percent and a 30 percent increase for breast cancer and ovarian cancer risks, respectively.
These associations held up even after controlling for a range of socioeconomic, behavioral, and dietary factors, such as smoking status, physical activity, and body mass index, according to the study.
“The average person in the UK consumes more than half of their daily energy intake from ultra-processed foods,” said Dr. Kiara Chang, the study’s leading author and researcher at Imperial College London. “This is exceptionally high and concerning as ultra-processed foods are produced with industrially derived ingredients and often use food additives to adjust color, flavor, consistency, texture, or extend shelf life.”
Americans Also at Risk
A 2021 study in the United States suggests that the average American diet has shifted toward including more UPFs.The results showed that UPF consumption grew from 53.5 percent of calories in the beginning of the period studied (2001–2002) to 57 percent at the end (2017–2018).
“This is concerning, as eating more ultra-processed foods is associated with poor diet quality and higher risk of several chronic diseases,” said Filippa Juul, the study’s leading author and a professor at NYU School of Public Health.
“The high and increasing consumption of ultra-processed foods in the 21st century may be a key driver of the obesity epidemic.”