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Sodium selenate (Na2SeO4), with the CAS number 7681-57-4, is a form of the essential trace element selenium. It plays a critical role in various biological processes due to its involvement in the function of selenoproteins, which are important for antioxidant defense, thyroid hormone metabolism, DNA synthesis, and immune function. Here are some key points about sodium selenate and its significance in high-quality nutrition:
Importance in Diet: Selenium is an essential micronutrient that is primarily obtained through diet. It is found in various food sources, including Brazil nuts, seafood, meat, poultry, and dairy products. The soil and water in different regions contain varying amounts of selenium, which affects the selenium content of locally grown foods .
Bioavailability: Sodium selenate is well-absorbed by the body, with absorption rates of up to about 90%. It is rapidly metabolized and used for synthesizing selenocysteine, a crucial component of selenoproteins .
Health Benefits: Adequate selenium intake is associated with a reduced risk of certain cancers, support of a healthy immune system, and maintenance of thyroid health. It also plays a role in protecting the body against oxidative stress and inflammation .
Supplementation: Sodium selenate can be found in dietary supplements, often in combination with other nutrients. It is used to prevent or correct selenium deficiency and to support overall health .
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