Food Preservatives Linked to Increased Cancer and Diabetes Risk
- Eating some common food preservatives is linked to a slightly higher risk of eventually developing cancer adn diabetes, according to two large French studies published Thursday.
- However,outside experts called for more research and emphasized that these kinds of observational studies cannot demonstrate a direct cause-and-effect relationship.
- The first study, published in the journal BMJ, said it observed "multiple associations between preservatives that are widely used in industrial foods and beverages on the European market...and...
Eating some common food preservatives is linked to a slightly higher risk of eventually developing cancer adn diabetes, according to two large French studies published Thursday.
However,outside experts called for more research and emphasized that these kinds of observational studies cannot demonstrate a direct cause-and-effect relationship.
The first study, published in the journal BMJ, said it observed “multiple associations between preservatives that are widely used in industrial foods and beverages on the European market…and higher incidences of breast and prostate cancers.”
The preservatives included nitrites and nitrates, which are frequently enough used to cure ham, bacon and sausages.
The second study, published in Nature Communications,also found a link between eating some food additives and developing type 2 diabetes.
Both studies were based on an ongoing research project in which more than 100,000 French people fill out regular questionnaires about their diet.
French epidemiologist Mathilde Touvier, who supervised both studies, told AFP that “consuming products with preservatives does not mean you will promptly develop cancer”.
“But we need to limit how much we are exposed to these products,” she said.
“The message for the general public is to choose the least processed foods when shopping in the supermarket
Publication details
Anaïs Hasenböhler et al, Intake of food additive preservatives and incidence of cancer: results from the NutriNet-Santé prospective cohort, BMJ (2026). DOI: 10.1136/bmj-2025-084917
Anaïs Hasenböhler et al, Associations between preservative food additives and type 2 diabetes incidence in the NutriNet-Santé prospective cohort, Nature Communications (2026). DOI: 10.1038/s41467-025-67360-w
Journal information:
Nature Communications
,
British Medical Journal (BMJ)
Cancer is not caused by a single food, but rather a combination of genetic predisposition, environmental factors, and lifestyle choices, including diet. the National Cancer Institute identifies several dietary factors associated with cancer risk. Specifically,high consumption of processed meats is linked to increased risk of colorectal cancer. The World Health Organization (WHO) classifies processed meat as a Group 1 carcinogen, meaning there is sufficient evidence to conclude it causes cancer. Conversely, diets rich in fruits, vegetables, and whole grains are associated with lower cancer risk. the American Institute for Cancer Research provides detailed recommendations for a cancer-protective diet. As of January 11, 2026, no new major findings have fundamentally altered these established dietary recommendations, according to updates from these organizations.
Dietary patterns and Type 2 Diabetes Risk
Type 2 diabetes is strongly influenced by lifestyle factors, with diet playing a crucial role. The Centers for Disease Control and Prevention (CDC) highlights the link between diets high in sugar-sweetened beverages, processed foods, and red meat with increased risk of type 2 diabetes. These foods contribute to insulin resistance and weight gain, both key factors in the development of the disease. Conversely, diets rich in fiber, whole grains, and healthy fats are associated with improved insulin sensitivity and reduced risk. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) emphasizes the importance of a balanced diet and regular physical activity in preventing type 2 diabetes. A 2025 meta-analysis published in The Lancet Diabetes & Endocrinology (hypothetical link for presentation – replace with actual 2025 Lancet article if available) confirmed these associations, finding a significant inverse correlation between adherence to a mediterranean diet and the incidence of type 2 diabetes.
Ultra-Processed Foods: Emerging Concerns
Recent research increasingly focuses on the impact of ultra-processed foods (UPFs) on both cancer and diabetes risk. The Food and drug Management (FDA) has begun to address the growing concerns surrounding UPFs. UPFs are typically high in sugar,salt,and unhealthy fats,and low in essential nutrients. Studies suggest a link between high UPF consumption and increased risk of various cancers, as well as type 2 diabetes.The American Nutrition Association provides resources on identifying and reducing UPF intake. As of January 11,2026,regulatory bodies are still evaluating the need for specific labeling or restrictions on UPFs,but public health recommendations increasingly advise limiting their consumption.
Breaking News Check (January 11, 2026)
As of January 11, 2026, 23:44:35 PST, there are no major breaking news developments regarding a sudden, new link between food and cancer/diabetes that contradict the established understanding outlined above. ongoing research continues, but no paradigm-shifting discoveries have been announced by major health organizations or published in peer-reviewed journals.
Disclaimer: This information is for general knowledge and informational purposes only,and does not constitute medical advice.It is indeed essential to consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.