Among them, processed foods such as sausages, cold cuts, instant noodles... are groups that need special attention.
These foods often contain high levels of salt (sodium) to preserve and enhance flavor. According to Dr. Nutrition Lisa Young (University of New York, USA), consuming too much sodium can cause the body to retain water, increase blood pressure and create additional burden on the kidneys during blood filtration.
In addition, processed foods also contain many additives and preservatives. When introduced into the body in large quantities and for a long time, these substances can affect kidney function, especially in people who already have underlying conditions such as high blood pressure or diabetes.
Another factor is the high content of protein and saturated fat in processed meats. According to Professor Walter Willett (Harvard School of Public Health, USA), a diet rich in processed foods can increase the risk of chronic kidney disease, especially when combined with a sedentary lifestyle.
However, experts emphasize that it is not necessary to completely eliminate these foods, but to limit the frequency of use. Instead, you should prioritize healthier choices such as whole grains, eggs, low-fat milk, fruits and green vegetables.
To protect kidney health, maintaining a balanced diet, reducing salt, drinking enough water and controlling related diseases are still important factors.
