In recent years, the incidence of chronic kidney disease in the mainland is about 11%, and about one in ten people may be plagued by chronic kidney disease. Many kidney friends may have such a question: After getting this problem, is there anything to pay attention to in eating?
Yes
And it's very important
That is to stick to a low-protein diet
You know, although protein is an important nutrient and plays a variety of functions in the body, after the protein is fully utilized, it will be left with residues called nitrogen-containing waste, mainly urea nitrogen and creatinine common in our physical examination reports. The accumulation of these nitrogenous wastes in the body can poison many important organs and need to be excreted in time through our kidneys.
There are millions of kidney units in the kidneys responsible for this. A renal unit consists of a glomerulus and a tubule, the globule will be nitrogen-containing waste and other toxins filtered out of the blood, and then through the tubule to recycle the useful substances and absorb water concentration, forming the final urine, the nitrogen-containing waste is all excreted from the body.
However, under the influence of chronic kidney disease, the number of kidney units that can work normally is greatly reduced, and the detoxification ability of the kidneys is greatly reduced. If you eat protein at this time as before and produce more nitrogen-containing waste, it may cause nitrogen-containing waste to accumulate in the body and damage the health of the whole body. Therefore, a low-protein diet can not only reduce the work burden of the kidneys, but also reduce the production of nitrogen-containing waste, which is the most important diet plan for patients with chronic kidney disease.
So how does a low-protein diet work?
First of all, we must give priority to eating high-quality protein. The amino acid pattern of high-quality protein is closer to the essential amino acids of the human body and is easily absorbed and utilized by the body. Therefore, it is recommended to eat more foods rich in high-quality protein, including lean chicken and fish, milk and eggs rich in high-quality animal protein, and soybeans, tofu and soy milk rich in high-quality plant protein.
The second is how much to eat? Current research suggests that for patients with early-stage chronic kidney disease, daily protein intake should be controlled at 0.8 grams per kilogram of body weight.
Combined with everyone's eating habits, this "1234 Kidney Recipe" was simply summarized: 1 egg, half a piece of tofu; 240ml of two drinks (milk or soy milk); 3 fingers of width and length, 3 kinds of meat (chicken, fish, lean meat); choose 4 portions from it to make up 1 two. That is to say, for 60 kg of patients with early chronic kidney disease, 4 parts of the above 7 high-quality protein foods can be selected every day, and the amount of high-quality protein contained in it is about one or two, which is about the recommended intake for one day. Of course, you can also flexibly increase or decrease 1-2 servings of high-quality protein foods according to your own weight.
Finally, I hope that the majority of kidney friends can adhere to the low-protein diet and flexibly use the "1234 Kidney Nourishing Recipe". In the new year, I wish everyone a strong kidney, a refreshing kidney, a full kidney, and a flying kidney!
Author: Zhang Yunlu Resident, Department of Internal Medicine, Zhongshan Hospital Affiliated to Fudan University
Audit: Deputy Chief Physician of the Department of Rehabilitation, Zhongshan Hospital Affiliated to Fudan University