Eating less iodine will affect intelligence and get "big neck disease". From 65438 to 0994, China fully implemented the national policy of eating iodized salt for all, so the common salt on the market at present is iodized salt, which is especially suitable for pregnant women and lactating women who need a lot of iodine.
For ordinary people, 5-6g of iodized salt per day (a beer bottle cap) is enough to meet the human body's demand for iodine. Patients with common kidney disease can also eat iodized salt.
The nine provinces of Beijing, Tianjin, Hebei, Shanxi, Inner Mongolia, Jiangsu, Anhui, Shandong and Henan are high iodine areas and are not short of iodine. And some people eat too much salt and iodine.
It should be noted that excessive iodine intake will increase the risk of thyroid diseases. For people who often eat seafood in coastal areas, seafood already contains enough iodine, as well as patients with hyperthyroidism, thyroiditis and autoimmune thyroid diseases. It is suggested to choose low iodized salt or non-iodized salt.
Suggestion: pregnant women and lactating women should eat iodized salt, and some patients with thyroid diseases in high iodine areas should eat non-iodized salt.
Chemically, every salt contains a metal element, and salt (sodium chloride) is no exception, containing sodium.
However, sodium can raise blood pressure, so it is suggested that patients with hypertension use potassium chloride instead of part of sodium chloride. Potassium chloride is a low sodium salt, which can also be called high potassium salt. Potassium has a little effect on lowering blood pressure.
In fact, there is a lot of sodium in the low sodium salt, but 10%-30% of the sodium is replaced by potassium. If you don't adopt a low-salt diet, most people will still eat sodium exceeding the standard as usual, but the degree of exceeding the standard is slightly lighter.
It should be noted that patients with renal failure who have difficulty in discharging potassium, whether high in sodium or potassium, are unacceptable, and hyperkalemia may lead to cardiac arrest, which is even more dangerous.
Of course, if the renal function is normal, and you don't take drugs that can increase potassium, such as Puli/sartan, spironolactone, cyclosporine and tacrolimus, you can eat low sodium, and less sodium and more potassium are beneficial. However, there are also a few patients who do not need to take these drugs, and the urine protein is basically below 0.5g, so there is no need for drug intervention.
Some experts in other diseases may advise patients with kidney disease to eat low sodium salt to lower their blood pressure. Everyone knows that good blood pressure is good for the kidneys. However, doctors in various departments are not clear about how many times patients with kidney disease have to face the risk of high potassium during the whole treatment process.
Most patients with kidney disease are afraid of high sodium and even more afraid of high potassium. Whether it is ordinary salt or low sodium salt, high sodium salt or high potassium salt, we should eat less and control it at 3-6g every day.
Sea salt, lake salt and rock salt refer to the source of salt, which has nothing to do with iodine content, so don't care too much.
Bamboo salt has a faint fragrance and basically loses its characteristics after heating, so it is generally suitable for cold salad.
Seaweed salt is actually a kind of iodized salt, which is essentially iodized salt, which is more expensive than the iodized salt we usually eat, but there is no difference in nutrition.
The main feature of healthy balanced salt is the combination of iodine, potassium, magnesium, selenium, zinc and other essential trace elements. Generally speaking, it combines the characteristics of iodized salt, low sodium salt, zinc salt and selenium salt, and is suitable for ordinary people without related diseases. Patients with kidney disease should also consider blood potassium before eating.
I always feel that writing this popular science article is of little value. Because kidney friends distinguish the characteristics, advantages and disadvantages of various salts, the effect is not obvious. "Knowing salt" is not as simple as "less salt", but more effective in protecting kidneys and body.
People often say that "one effort will bring down ten meetings" and "in the face of absolute strength, any move is a show-off gesture". Compared with all kinds of "low X salt", "low salt" is absolute power. Instead of finding fault with the dazzling array of low iodized salt, low sodium salt and balanced salt, it is better to check your 24-hour urine sodium (the touchstone for testing whether the salt intake is qualified). Whether this index is good or not has a strong predictive effect on the final outcome of chronic kidney disease.