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Vitamin A deficiency (VAD) or hypovitaminosis A is a lack of vitamin A in blood and tissues. [1] It is common in poorer countries, especially among children and women of reproductive age, but is rarely seen in more developed countries. [1] Vitamin A plays a major role in phototransduction, so this deficiency impairs vision, often presenting ...
According to a 2017 Cochrane review, vitamin A deficiency, using serum retinol less than 0.70 μmol/L as a criterion, is a major public health problem affecting an estimated 190 million children under five years of age in low- and middle-income countries, primarily in Sub-Saharan Africa and Southeast Asia.
According to the National Health and Nutrition Examination Survey, about 6% of elderly Americans over 70 are severely deficient in vitamin B12, and more than 20% of those over 60 are mildly deficient. This deficiency is often due to insufficient food intake and malabsorption caused by degenerative digestive conditions, as indicated by elevated ...
Upon analysis, scientists found that participants who stayed on standard statin treatment for their lifetime increased their quality-adjusted life years by 0.24-0.70, and those on higher-intensity ...
Retinol, also called vitamin A 1, is a fat-soluble vitamin in the vitamin A family that is found in food and used as a dietary supplement. [3] Retinol or other forms of vitamin A are needed for vision, cellular development, maintenance of skin and mucous membranes, immune function and reproductive development. [3]
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Common, most foods do not contain vitamin D, indicating that a deficiency will occur unless people get sunlight exposure or eat manufactured foods purposely fortified with vitamin D. Vitamin D deficiency is a known cause of rickets, and has been linked to numerous other health problems. [46] [47] Vitamin E deficiency
A recent study reveals some women over 70 years old are felling more lonely than ever due to the COVID-19 pandemic. Study Says Some Woman Over 70 Suffering Through 'The Silent Epidemic' Due To ...
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