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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 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.
The five major minerals in the human body are calcium, phosphorus, potassium, sodium, and magnesium. [2] The remaining minerals are called " trace elements ". The generally accepted trace elements are iron , chlorine , cobalt , copper , zinc , manganese , molybdenum , iodine , selenium , [ 5 ] and bromine ; [ 6 ] there is some evidence that ...
Mineral deficiency is a lack of the dietary minerals, the micronutrients that are needed for an organism's proper health. [1] The cause may be a poor diet , impaired uptake of the minerals that are consumed, or a dysfunction in the organism's use of the mineral after it is absorbed.
In fish and other wildlife, selenium is necessary for life but toxic in high doses. For salmon, the optimal selenium concentration is about 1 microgram selenium per gram of whole body weight. Much below that level, young salmon die from deficiency; [144] much above, they die from toxic excess. [143]
The same goes for vitamin B12 and ferritin (a form of iron) which women may not get enough of via food, particularly those following plant-based or vegetarian diets.
[11] [12] Specifically, it is a deficiency, excess, or imbalance of energy, protein and other nutrients which adversely affects the body's tissues and form. [13] Malnutrition is a category of diseases that includes undernutrition and overnutrition. [14] Undernutrition is a lack of nutrients, which can result in stunted growth, wasting, and ...
Women's clothing trends have long been designed to accentuate certain features (often to cater to the male gaze), even before "flattering" was a commonly used term.