The main function of the kidney is to filter the water in the body. After being filtered by the kidney, the kidney reabsorbs nutrients and concentrates on metabolizing wastes and poisons to form urine. Urine is excreted from the bladder.

Therefore, the quality of the kidney determines the detoxification function of our body. In diet, how should we maintain the kidneys? What are the signs of kidney problems? What should nutritional support for kidney diseases do?

Eating too many of these three foods is very harmful to the kidneys! Remember, everyone.

people can't live without salt for a day. Salt is something we eat every day. For the kidney, filtering body water is its most important function. If the salt is too high, the burden on the kidney will be very heavy, and in the long run, it will damage the kidney.

human blood is weakly alkaline, and the kidney maintains the acid-base balance, that is, the electrolyte balance. Na+ in salt will affect the body fluid balance, so the kidney can't discharge the excess Na+ at one time, and it will filter it several times to maintain the electrolyte balance in the body.

According to the statistics of the National Bureau of Statistics, Chinese residents eat an average of 9.3g of salt every day, and some areas even eat an average of 15g of salt every day.

people's tastes are getting heavier and heavier, which may be related to the pressure of life in modern society. In particular, salt or sodium is now added to processed foods. For example, there is Na+ in potato chips and biscuits. So we eat more and more salt! The damage to the kidneys is getting bigger and bigger!

The dietary guidelines for China residents in 222 suggest that the daily salt intake should not exceed 5g, which is about as much as a beer bottle cap. And eat less and pickle foods, such as pickles, fermented bean curd, sausages, ham and other foods with high salt content. Snacks with high salt content should also be eaten less, for example, spicy strips and instant noodles.

2. Water

Water has a great influence on health. The correct drinking method can protect the body, and the wrong drinking method will damage the body.

The main function of the kidney is to filter body fluids. If you drink too much water a day, the kidney frequently filters body fluids, and the pressure is too great, which will cause certain damage and even water poisoning.

The kidneys can filter up to 1L of water in one hour. If we drink more than 1L at a time, the kidneys will not be drained in time, and there will be headaches, restlessness, drowsiness and so on!

It is reported that in Shenzhen, a person who had a B-ultrasound had vomiting, convulsions and other symptoms after drinking 3.2l water. Fortunately, he was in the hospital and was treated in time. This is an acute water poisoning incident.

how much water a person drinks every day is determined by his own situation, such as height, weight, exercise, and even the environment will affect the water needed by his body. Eight glasses of water is not enough.

according to the world health organization, the recommended intake of total water for adult males is 29ml/d, and that for adult females is 22 ml/d. Teenagers and pregnant women can drink more. Old people need to drink water regularly and quantitatively because of their slow response to thirst, and increase or decrease the amount of water according to exercise.

3. Seafood

Seafood foods are rich in purine, which enters the body and is converted into uric acid, which is excreted with urine.

If you eat too much seafood, uric acid will accumulate in the body in large quantities, and the kidneys will not be able to excrete it. Uric acid will gather in the kidneys, bladder and joints to form stones.

uric acid will become hyperuricemia if it is accumulated continuously, which will damage the metabolism of the kidney and cause great harm. Dietary guidelines for China residents recommend that the intake of seafood should be about twice a week, with 12~2g each time. Eating seafood every day, and exceeding 1g, will lead to the accumulation of uric acid.

Besides seafood, there are many foods high in purine, so you should eat less.

such as animal offal, beef offal, duck intestines, etc. The purine content of pig liver is relatively high, so it is advisable to eat pig liver once a week, not exceeding 5g. The purine content of gravy and old gravy is also very high, so don't eat it every day. Some vegetables are also foods with high purine content, such as green beans, peanuts, peas and various mushrooms.

Avoid uric acid accumulation in the body, causing kidney damage.

All the five internal organs of the human body belong to dumb organs, so there is no pain when you are sick, and only when it worsens to the late stage of cancer will there be obvious pain. So how do we judge whether our kidneys are healthy? How can we find kidney disease in advance and treat it early?

There are three main manifestations of abnormal urine in renal diseases.

First, the urine volume is reduced. Drink water normally every day, but the urine volume is less than 4mL! Or significantly less than the amount of water consumed.

second, hematuria, urine has obvious red sediment, which is caused by red blood cells.

thirdly, proteinuria, which is mainly manifested by excessive urine foam and easy to attract flies and mosquitoes, is a nephropathy caused by diabetes.

In case of the above three conditions, you should go to the hospital for urine test.

1. Edema

The face, feet and eyes are prone to edema and often edema. Still edema after a week of light diet, need to do ultrasound examination of the kidney.

2. Anemia

Mild and moderate anemia may also be caused by decreased secretion of erythropoietin by the kidney, and it is necessary to go to the hospital for examination to determine the cause of anemia.

It is worth noting that kidney disease can also lead to an increase in blood pressure. Middle-aged and elderly people should also check their kidney health if they find their blood pressure increase.

3, impaired digestive function

Kidney disease can lead to loss of appetite, nausea and vomiting, the most obvious feature is the smell of urea in the mouth. The digestive tract is prone to bleeding, bloody stool, and gastric ulcer.

4. Abnormal nervous system

Early in the morning, kidney disease may lead to lack of energy, fatigue, depression, memory loss, even hallucinations and mental disorders. I often feel numbness and burning in my limbs. Muscle spasms or weakness occasionally.

These are all central nervous system disorders caused by kidney diseases. You should go to the hospital immediately to check the five items of renal function.

So what should I pay attention to when I am a patient with kidney disease? What is good to eat? What is bad to eat?