" nutritive salt " Mount the dining table of the family silently Don't follow the fashion carefully to choose

" nutritive salt " Mount the dining table of the family silently Don't follow the fashion carefully to choose
Add the iodine in the salt which is short of iodine area, add selenium in the salt of the low selenium area, and popularize low sodium salt in the healthy crowd, there is method that scientific evidence supports. Pass " nutritive salt " Whether coming to supplement other microelements essential hard to tells.
Any " The nutrient component " ,Take place beneficial function under certain consumption all, may endanger health under another consumption. Take, add iodized salt let a lot of people entangled with endlessly, people find quietly, the more so-called one " The nutritive salt " Have laid out the shelve: Low sodium salt, adding selenium salt, adding calcium salt, adding zinc salt, adding molysite Drazzling. No doubt we have " The right to choose " ,But, why select?
Too much sodium will raise blood pressure
In the Chinese crowd's recipe at present, the high salt may be the biggest unhealthy factor. Sodium in the salt is the element with necessary health, but too much sodium will raise blood pressure. Some research reveals the diet of high salt and emergence of some cancers are concerned certainly. The intaking amount of sodium of recommending every day of authoritative organization is lower than 2.3 grams, this quantity is roughly equivalent to 6 grams of salt. Moreover, 2.3 grams should also actually include sodium of other sources in the diet, such as soy sauce, gourmet powder, salted vegetables,etc.. It is about 10 grams that the salt that Chinese eat every day reaches. So, it is that the Chinese society " uses the salt to reduce the intaking amount of salt healthily " Task of top priority. The appearance of low sodium salt claims to solve this problem.
Contain 25% the intersection of chlorine and potassium 10% magnesium sulfuric acid in the low the intersection of sodium and salt that produce at present, thus bring the content of sodium chloride down to 65%. If replace the ordinary salt of the same weight with low sodium salt, the function of reducing the intaking amount of sodium will be obvious. However, " saline taste " that we need Be produced from sodium, so salty degree that low sodium salt of the same weight produces will be not so good as the ordinary salt. If get the same one through strengthening the consumption of low sodium salt " Saline taste " ," low sodium " Result on will give a discount. Fortunately, the chemical property of potassium and sodium has certain analogy, so chlorine potassium can produce certain saline taste. Generally speaking, on the premise of realizing the same salty degree, low sodium salt may be helped certainly. As for potassium among them, it is generally speaking favorable to the health. There is too much sodium will raise blood pressure, but potassium contributes to lowering blood pressure. Much food natural to contain quite a lot of potassium, and how much potassium human body need really and how much potassium can endanger health, there are no abundant scientific data.
At present, the giving a recommendation amount has 3 grams, 3.5 grams to have different figures such as 4.7 grams every day when can find, but safe upper limit is returned " Lack and make the basis " . As for healthy people, potassium in the diet adds potassium in low sodium salt, can be thought to be favorable to the health, and needn't worry " Potassium is excessive " Question. However, kidney, heart person and diabetic with the obstacle, the supersession of potassium is not complete, too much potassium may cause too " High blood potassium " .
Selenium is excessive will cause " Selenium is poisoned "
The salt has similar greatly with the situation with iodine to add selenium. Selenium is a composition element of selenium albumen, can protect cell from attack by free radical, increase important meaning to health of heart and immunity. Besides this, some studies and also finds and supplements selenium that can reduce some emergence risks of cancer, but some results of study indicate to come to naught. American food medicines administration bureau (FDA) Conclusions formal by supplementing selenium been for prevention and cure for cancer " The evidence is limited and non- enough to conclude " . The intersection of epidemiology and investigation find selenium to be scarce and closely related to Keshan disease, supplement selenium, can reduce incidence, Keshan of disease. Selenium in the food is mainly involved in source of water with the soil, selenium content is lower in the diet of a lot of areas in our country. The intaking amount is only 19 micrograms on average every day such as the disease hotspot of some grams of mountains, every daily intaking amount of the adult that and U.S.A. recommends is 55 micrograms. Natural in a lot of food to contain selenium, non- " low selenium area " Person can obtain by quantity on the ones enough from in diets normal. Selenium is excessive will cause " Selenium is poisoned " ,Depending on the security upper limit that the present scientific result of study is made is 400 micrograms every day. And each gram adds and contains 15 micrograms of inferior selenium sour sodium in selenium salt, it is equivalent to 6.8 micrograms of selenium, until Chinese take 6- 10 of salt, calculate every day, add selenium salt may offer microgram of seleniums. As to the low selenium area, it is necessary to eat such adding selenium salt, and safe.
It propagandizes the gag to add calcium salt
Basically one propagandizes the gag to add calcium salt. The human demand for calcium is higher, the proposed standard of U.S.A. is 1000 milligrams every day of adult. And according to adding the calcium content (0.25- 0.55%) in calcium salt ,There are dozens of milligrams people from adding calcium that is got in calcium salt. This to calcium demand for meeting the human body, can basically neglect.
And is it essential to add zinc and add irons, not easier to treat as the same. A lot of propaganda about these products just emphasizes the importance to human body of iron and zinc, draw and add irons to add the conclusion of zinc good for health in the salt. It is the fact that zinc and iron have important physiological functions, but too many irons and zinc are harmful to health too. A lot of food natural to contain zinc and iron, add zinc and iron in the some prescription food. Whether so, the human body needs supplementing extraly, relates to everybody's concrete recipe. It is very difficult to go on to lack irons and lack zinc briefly " Diagnose oneself " ,it clear the ones one's own is may not good for health in health, may even be harmful.
Add the iodine in the salt which is short of iodine area, add selenium in the salt of the low selenium area, and popularize low sodium salt in the healthy crowd, there is method that scientific evidence supports. Pass " nutritive salt " Whether coming to supplement other microelements essential hard to tells. Quote the recommendation of " American meal guide ": "The nutrition demand should be mainly satisfied by the food In certain circumstances, it is perhaps the useful sources of one or several kinds compositions that can't be fully absorbed from regular diet to strengthen the food or meal additive. However, additive of meal, though in some cases is given a recommendation, can't replace the health recipe. " Supplementary in the salt " Nutrition " ,The exactly said one " Strengthen " Or " the meal is supplementary " . (cloud is not be in the mood for)
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