Your kidney will help you to removes unwanted fluid. When extra fluid is sucked out and put into your bladder to be removed as urine.
How it works? Your kidneys will draw the extra water out of your blood with osmosis process. This process uses a delicate balance of sodium and potassium to pull the water across a wall of cells from the bloodstream into a collecting channel that leads to the bladder.
Eating refine salt and organic salt that have more than 80% sodium will raises the amount of sodium in your bloodstream and wrecks the delicate balance, reducing the ability of your kidneys to remove the water.
How do you know you are using the salt that have high sodium? Many claim their salt is natural sea salt or organic salt. Read their label to find out.
The result is a higher blood pressure due to the extra fluid and extra strain on the delicate blood vessels leading to the kidneys.
This extra strain in long term can damage the kidneys - known as kidney disease. This reduces their ability to filter out unwanted and toxic waste products, which then start to build up in the body.
If kidney disease is left untreated and the blood pressure isn't lowered, the damage can lead to kidney failure. This is when the kidneys are no longer able to be filter the blood and the body slowly becomes poisoned by its own toxic waste products.
How do you know your kidney problem with urine test?
The kidneys maintain the blood creatinine in a normal range. Creatinine (What is creatinine?) has been found to be a fairly reliable indicator of kidney function. Elevated creatinine level signifies impaired kidney function or kidney disease.
As the kidneys become impaired for any reason, the creatinine level in the blood will rise due to poor clearance of creatinine by the kidneys. Abnormally high levels of creatinine thus warn of possible malfunction or failure of the kidneys. It is for this reason that standard blood tests routinely check the amount of creatinine in the blood.
A more precise measure of the kidney function can be estimated by calculating how much creatinine is cleared from the body by the kidneys. This is referred to as creatinine clearance and it estimates the rate of filtration by kidneys (glomerular filtration rate, or GFR). The creatinine clearance can be measured in two ways. It can be calculated (estimated) by a formula using serum (blood) creatinine level, patient's weight, and age. The formula is 140 minus the patient's age in years times their weight in kilograms (times .85 for women), divided by 72 times the serum creatinine level in mg/dL. Creatinine clearance can also be more directly measured by collecting a 24-hour urine sample. Normal creatinine clearance for healthy women is 88-128 mL/min.
Blood urea nitrogen (BUN) level is another indicator of kidney function. Urea is also a metabolic byproduct which can build up if kidney function is impaired. The BUN-to-creatinine ratio generally provides more precise information about kidney function and its possible underlying cause compared with creatinine level alone.
If you have high blood pressure and are being treated with a diuretic medication, this makes the kidneys remove more fluid from the bloodstream. Because the sodium in salt counteracts this effect, reducing your salt intake will make your blood pressure medicine more effective.
