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Selenium deficiency occurs when an organism lacks the required levels of selenium, a critical nutrient in many species.Deficiency, although relatively rare in healthy well-nourished individuals, [1] can have significant negative results, [2] affecting the health of the heart and the nervous system; contributing to depression, anxiety, and dementia; and interfering with reproduction and gestation.
There are four main types of Keshan disease: acute, subacute, chronic, and latent. Some signs and symptoms of acute Keshan disease include dizziness, malaise, nausea, chills, loss of appetite, projectile vomiting, pallor, low arterial blood pressure (less than 80/60 mmHg), dyspnea, precardiac (anterior to the heart) or substernal (behind or below the sternum) discomfort, cardiogenic shock, and ...
Selenium is a cofactor for the three thyroid hormone deiodinases, helping activate and then deactivate various thyroid hormones and their metabolites. Isolated selenium deficiency is now being investigated for its role in the induction of autoimmune reactions in the thyroid gland in Hashimoto's disease. [162]
The food standards were then altered so that it became mandatory to use iodised salt in bread, and subsequent surveys have shown a decline in iodine deficiency. [6] Thomson also researched selenium deficiency, showing that eating one brazil nut per day was sufficient to raise most New Zealander's selenium to recommended levels. [5] [4]
In fact, recent research estimates 40% of girls and young women aged 12 to 21 in the US are affected by iron deficiency, with menstruation listed as the primary risk factor. Pregnancy and ...
Fletcher Loyer scored 24 points on 8-for-10 shooting, including 4-for-6 from beyond the arc, to lead No. 20 Purdue to an 81-61 win over Minnesota in a Big Ten Conference matchup on Thursday night ...
A man accused of attacking a Colorado reporter after questioning whether he was a citizen and saying “This is Trump’s America now” has had mental health issues for years, his lawyer said.
In the United States, selenium deficiency is not common. A federal survey of food consumption determined that for women and men over the age of 19, average consumption from foods and beverages was 89 and 125 μg/day, respectively. For women and men of all ages fewer than 3% consumed less than the EAR. [33]