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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.
Selenium is a nutrient that is naturally present in many foods, added to others and is also available as a dietary supplement in pill, powder and liquid form, explains Perri Halperin, a ...
Selenium deficiency as defined by low (<60% of normal) selenoenzyme activity levels in brain and endocrine tissues only occurs when a low selenium status is linked with an additional stress, such as high exposures to mercury [27] or as a result of increased oxidant stress due to vitamin E deficiency. [28]
The effect of selenium deficiency on health remains uncertain, particularly concerning Kashin–Beck disease. [152] Also, selenium interacts with other minerals, such as zinc and copper. High doses of selenium supplements in pregnant animals might disturb the zinc:copper ratio and lead to zinc reduction; in such treatment cases, zinc levels ...
Selenium is found in seafood, meat, poultry, eggs, dairy products and fortified grain products like cereal and bread. ... “Research suggests a link between vitamin D deficiency and autoimmune ...
Selenium deficiency: Significant negative results, [29] affecting the health of the heart, Keshan disease and the nervous system; contributing to depression, anxiety, and dementia; and interfering with reproduction and gestation. People dependent on food grown from selenium-deficient soil may be at risk for deficiency. [30] Sodium deficiency