Common food preservatives linked to cancer and type 2 diabetes
A recent study has raised concerns about the potential health risks associated with common food preservatives. According to two new studies from France, these preservatives, widely used to keep food safe and extend shelf life, may be linked to a higher risk of several cancers and type 2 diabetes.
The NutriNet-Santé study, which began in 2009, compared the dietary and lifestyle habits of over 170,000 participants with their medical data. The study found that certain preservatives, even those considered 'generally recognized as safe' (GRAS) by regulatory bodies, were associated with increased cancer risks. Sodium nitrite, for instance, was linked to a 32% increase in prostate cancer risk, while potassium nitrate was associated with a 22% higher risk of breast cancer and a 13% increase in all cancers.
The study also examined the impact of antioxidants and other preservatives on cancer risk. Interestingly, while these 'natural' preservatives are often linked to lower cancer risk when consumed as whole foods, they may be harmful when used as additives. Only two antioxidant preservatives were linked to cancer: sodium erythorbate and other erythorbates, which are used to prevent discoloration and spoilage in various foods.
In addition to cancer, the studies also explored the link between preservatives and type 2 diabetes. Twelve of the 17 preservatives examined were associated with a nearly 50% higher risk of developing type 2 diabetes in individuals who consumed the highest levels. Five of these preservatives, including sodium nitrite and acetic acid, also increased the risk of cancer.
The findings emphasize the importance of fresh, whole, and minimally processed foods, particularly plants, in maintaining personal and public health. However, the studies also highlight the need for further research to confirm and expand these findings, as they are the first of their kind.
Despite the caveats, the studies serve as a reminder of the potential health risks associated with food preservatives and the need for a reassessment of regulations governing their use in the food industry.
