Web• Vitamin D is a hormone, not a vitamin. The skin is responsible for producing vitamin D. During exposure to sunlight, ultraviolet radiation penetrates into the epidermis and … Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and many other biological effects. In humans, the most important compounds in this group are vitamin D3 (cholecalciferol) and vitamin D2 (ergocalciferol). The major … See more Several forms (vitamers) of vitamin D exist. The two major forms are vitamin D2 or ergocalciferol, and vitamin D3 or cholecalciferol. Vitamin D without a subscript refers to either D2 or D3, or both, and is known … See more The active vitamin D metabolite calcitriol mediates its biological effects by binding to the vitamin D receptor (VDR), which is principally located in the nuclei of target cells. The binding of … See more Supplementation with vitamin D is a reliable method for preventing or treating rickets. The effects of vitamin D supplementation on non-skeletal health are uncertain. A review did not find any effect from supplementation on the rates of non-skeletal … See more Recommendations on recommended 25(OH)D serum levels vary across authorities, and vary based on factors like age. US labs generally report 25(OH)D levels in ng/mL. Other countries often use nmol/L. One ng/mL is approximately equal to 2.5 nmol/L. See more A diet with insufficient vitamin D in conjunction with inadequate sun exposure causes vitamin D deficiency, which is defined as a blood 25(OH)D level below 12 ng/ml (30 … See more Recommended levels Various institutions have proposed different recommendations for the amount of daily intake of vitamin D. These vary according to precise definition, age, pregnancy or lactation, and the extent assumptions are … See more Vitamin D toxicity is rare. It is caused by supplementing with high doses of vitamin D rather than sunlight. The threshold for vitamin D toxicity has not been established; however, according to some research, the tolerable upper intake level (UL) is 4,000 See more
Translation of "to synthesize vitamin" in Italian - Reverso Context
WebMay 5, 2024 · 5. Egg yolks. Fish are not the only source of vitamin D. Whole eggs are another good source, as well as a wonderfully nutritious food. Most of the protein in an egg is found in the white, and the ... WebNational Center for Biotechnology Information scrum master job houston
Does vitamin D synthesis occur in indirect sunlight?
WebWhen ultraviolet (UV) light shines on a lipid present in skin cells, the compound is transformed into vitamin D. People native to equatorial and low-latitude regions of the … WebOct 25, 2024 · Allow 10 to 15 minutes or so of unprotected sun exposure to your arms, legs, abdomen and back. After that, follow up with good sun protection, like a 30-SPF or higher sunblock. Choose the right ... pcr animals