Once your kidneys become damaged, they usually continue to worsen over a period of time. Because of this, kidney disease is categorized into stages 1 through 5. Stage 2 is characterized by a mildly reduced kidney function and abnormal lab tests that indicate kidney disease. If you are in stage 2 of kidney disease, following the proper diet can help delay the progression of your disease.
Protein
Urea is a waste product that accumulates in the blood from the consumption of protein. Healthy kidneys can remove urea without complication, but diseased kidneys have a difficult time filtering urea from the blood. Because of this, too much protein can worsen kidney disease, but too little protein can be harmful as well. The Edinburgh Renal Unit notes that moderate intake of protein, or 0.6 to 0.7 g of protein per kilogram of body weight, is best for those with chronic kidney disease.
Minerals
When you have stage 2 kidney disease, it is important to monitor your intake of the minerals sodium and potassium. Too much sodium in your diet triggers your body to retain water, which can increase your blood pressure. High blood pressure puts stress on the kidneys, which can worsen kidney function. Diseased kidneys have trouble removing potassium from your blood. Because of this, consuming too much potassium can cause excess stress on the kidneys and cause potassium levels in the blood to accumulate. Excess potassium in the blood can lead to abnormal heart rhythms and may cause heart attack.
Fluid Restriction
Usually fluid restriction is only recommended for patients in the later stages of kidney disease. If you have kidney disease and do not produce adequate amounts of urine, or if you have a problem with fluid overload, however, you may need to restrict your fluid intake even in the earlier stages of kidney disease. Work with a dietitian to determine if a fluid restriction is necessary for you in stage 2 kidney disease.
Considerations
The Edinburgh Renal Unit notes that it is very important that you avoid under-feeding. Adequate calorie and protein intake is vital to maintaining your overall health and not eating enough can actually worsen kidney disease. A dietitian can help you devise a meal plan that provides you with all of the nutrients you need to sustain your health while avoiding the nutrients that may worsen kidney disease. It is also important to note that dietary recommendations may change with time and with the condition of your kidney disease. Work closely with your doctor and dietitian to monitor kidney function and make any necessary changes.
