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In 1969, a specific binding protein for vitamin D called the vitamin D receptor was identified. [204] Shortly thereafter, the conversion of vitamin D to calcifediol and then to calcitriol, the biologically active form, was confirmed. [205] The photosynthesis of vitamin D 3 in skin via previtamin D 3 and its subsequent metabolism was described ...
An excess of vitamin D causes abnormally high blood concentrations of calcium, which can cause overcalcification of the bones, soft tissues, heart and kidneys. In addition, hypertension can result. [2] Symptoms of vitamin D toxicity may include the following: Dehydration; Vomiting; Diarrhea; Decreased appetite; Irritability; Constipation ...
Decreased exposure of the skin to sunlight is a common cause of vitamin D deficiency. [1] People with a darker skin pigment with increased amounts of melanin may have decreased production of vitamin D. [3] Melanin absorbs ultraviolet B radiation from the sun and reduces vitamin D production. [3] Sunscreen can also reduce vitamin D production. [3]
A mother's nutritional intake during pregnancy is believed to influence and possibly offer protective effects against the development of allergenic diseases and asthma in children. [27] Maternal intake of vitamin D, vitamin E, and zinc have all been associated with a lower likelihood of wheezing in childhood, suggesting a protective effect. [27]
This happens when "UV rays convert a substance on our skin called 7-dehydrocholesterol into vitamin D. In order for vitamin D to do its job, it needs to be transformed into active vitamin D by the ...
Specific medical names of the different conditions are derived from the given vitamin involved: an excess of vitamin A, for example, is called hypervitaminosis A. Hypervitaminoses are primarily caused by fat-soluble vitamins ( D and A ), as these are stored by the body for longer than the water-soluble vitamins.
In addition to its vitamin D content, trout is packed with high-quality protein and heart-healthy omega-3 fatty acids, which can help fight inflammation and support cardiovascular health. Trout ...
Potential risks: Some negative side effects like muscle cramps, facial swelling, and bloating have been reported in relation to medication interactions, as well as for some people with existing ...