Women under 50 who regularly eat ultra-processed foods are at a higher risk of developing abnormal growths in their bowels that could lead to cancer, a new study has found. These foods, which include many packaged and processed goods, are typically low in essential nutrients like fibre and vitamins, and high in unhealthy ingredients such as saturated fat, sugar, and salt.
The study, led by Dr Andrew Chan of Massachusetts General hospital, looked at data from over 29,000 female nurses born between 1947 and 1964. The researchers found that those who ate the most ultra-processed foods β on average, 9.9 servings a day β were 45% more likely to develop early-onset conventional adenomas than those who ate the least, such as 3.3 servings a day.
While the study did not directly measure cancer risk, it suggests that ultra-processed diets may play a role in driving rising rates of bowel cancer among younger people. Dr Chan noted that while the results do not suggest that eating ultra-processed foods will inevitably lead to cancer, they do offer insight into how diet may influence early changes in the bowel that can sometimes lead to cancer.
The study's findings are consistent with previous research that has linked ultra-processed diets to a range of health problems, including heart disease and premature death. Dr Chan suggested that up to 60% of food consumed by humans today is ultra-processed, and that reducing this intake may be key to preventing bowel cancer and other diseases.
Health experts say that while the study's findings are promising, more research is needed to confirm its results and understand the underlying mechanisms at play. Fiona Osgun, head of health information at Cancer Research UK, noted that policy-level changes were needed to make healthier diets more accessible for everyone. "Our overall diet matters more for cancer risk than any single food type," she said.
The study, led by Dr Andrew Chan of Massachusetts General hospital, looked at data from over 29,000 female nurses born between 1947 and 1964. The researchers found that those who ate the most ultra-processed foods β on average, 9.9 servings a day β were 45% more likely to develop early-onset conventional adenomas than those who ate the least, such as 3.3 servings a day.
While the study did not directly measure cancer risk, it suggests that ultra-processed diets may play a role in driving rising rates of bowel cancer among younger people. Dr Chan noted that while the results do not suggest that eating ultra-processed foods will inevitably lead to cancer, they do offer insight into how diet may influence early changes in the bowel that can sometimes lead to cancer.
The study's findings are consistent with previous research that has linked ultra-processed diets to a range of health problems, including heart disease and premature death. Dr Chan suggested that up to 60% of food consumed by humans today is ultra-processed, and that reducing this intake may be key to preventing bowel cancer and other diseases.
Health experts say that while the study's findings are promising, more research is needed to confirm its results and understand the underlying mechanisms at play. Fiona Osgun, head of health information at Cancer Research UK, noted that policy-level changes were needed to make healthier diets more accessible for everyone. "Our overall diet matters more for cancer risk than any single food type," she said.