Author: Joe Fowler
Time for reading: ~2
minutes
Last Updated:
August 08, 2022
A large-scale study links ultra-processed foods to a high risk of breast cancer in general and breast cancer in particular.
Research to date has shown that ultra-processed foods carry a high risk of obesity, high blood pressure and cholesterol. A team from Harvard's Department of Health and Population is examining whether there is a link between ultra-processed foods and the risk of developing cancer, specifically breast, bowel and prostate cancer.
The team provides the renowned British Medical Journal with a list of food traits for which such dependence can be sought. The results of their study show that the large increase in consumption of processed foods in recent decades portends an increased incidence of cancer in the next few.
In the NOVA international classification, these products are designated as ultra-processed and they may differ from the consumer on the following grounds:
The list of ultra-processed products includes:
The research team draws its conclusions from the study of eating habits of 104,980 people (22% men and 78% women) with an average age of 43 years. Volunteers fill out special questionnaires aimed at measuring the consumption of 3,300 different foods. They are grouped separately by degree of treatment, and cancer cases are documented through the medical file and the national database for 5 years.
During the study, the team reported several known cancer risk factors such as age, gender, education, smoking and physical activity.
The analysis found that increased consumption of ultra-processed foods by 10% led to a 12% increase in overall cancer risk and an 11% increase in breast cancer risk. Such a link is not found for colorectal and prostate cancer.
The team found no significant link between cancer and consumption of less processed foods, such as canned vegetables, cheese, fresh unpackaged bread. Consumption of fresh and minimally processed foods such as fruits, vegetables, legumes, rice, pasta, meat, fish, eggs and milk is the lowest risk in terms of cancer and breast cancer.
This is the first study to examine the link between the increased risk of cancer and, in particular, breast cancer with the consumption of ultra-processed foods, its authors point out.