A recent study published in PLOS Medicine has found a link between nitrates and nitrites and an increased risk of type 2 diabetes. Nitrates and nitrites are naturally occurring molecules found in soil, water, and processed meats. The study's authors did note that an association is not necessarily indicative of causation. Some experts have previously warned of potential dangers of nitrates and nitrites, particularly in relation to cancer.
In addition to the potential link to diabetes, nitrates and nitrites can be beneficial to health in certain forms. Vegetables containing nitrates can improve blood pressure and gut health. Therefore, experts recommend limiting the intake of heavily processed foods that use nitrates as a preservative, while still including nutrient-dense vegetables in the diet.
The findings of the PLOS Medicine study suggest that further research is needed to determine the association between nitrates and nitrites and type 2 diabetes. In the meantime, it is important to be aware of the potential risks associated with consuming processed meats, while also factoring in the potential benefits of including vegetables containing nitrates in the diet. Ultimately, it is best to focus on a balanced diet that includes a variety of nutrient-dense foods.