Vitamin D-2 and vitamin D-3 comparisons: fundamentally flawed study methodology. Susan Lanham-New,Reinhold Vieth,Robert Heaney. The American Journal of Clinical Nutrition . 2010Lanham New, S., Vieth, R., and Heaney, R. (2010) Vitamin D2 and vitamin D3 comparisons: fundamentally flawed ...
Vitamin D3 '87 percent more potent than vitamin D2: Study BACKGROUND:. Current unitage for the calciferols suggests that equimolar quantities of vitamins D2 (D2) and D3 (D3) are biologically equivalent. Published studies yield mixed results. OBJECTIVE:. The aim of the study was to compar...
CONCLUSION: A 1000 IU dose of vitamin D2 daily was as effective as 1000 IU vitamin D3 in maintaining serum 25-hydroxyvitamin D levels and did not negatively influence serum 25-hydroxyvitamin D3 levels. Therefore, vitamin D2 is equally as effective as vitamin D3 in maintaining 25-...
vitamin D1 n. a form of vitamin D obtained by ultraviolet irradiation of ergosterol. [1930–35] vitamin D2 n. calciferol. [1930–35] vitamin D3 n. a form of vitamin D, C27H43OH, occurring in fish-liver oils, that differs from vitamin D2by slight structural differences in the molecule...
特别提示:包括维生素D补充剂(Vitamin D2)在内,本公司的所有产品仅可用于科研实验,严禁用于临床医疗及其他非科研用途! 产品名称:维生素D补充剂(Vitamin D2) 英文名称:Vitamin D2 产品货号:M05490 产品规格:1g|5g|10g
is another name for supplemental vitamin D2. Supplemental D2 is cheaper to produce than supplemental D3; however, it is not as effective at raising levels of vitamin D in the blood nor as stable as synthetic vitamin D3. Vitamin D2 still requires conversion in the body to become D3 ...
Metabolism of vitamin D3 in human osteoblasts: Evidence for autocrine and paracrine activities of 1α,25-dihydroxyvitamin D3 Circulating 1伪,25-dihydroxyvitamin D3 (1,25D) derives from renal conversion of 25-hydroxyvitamin D3 (25D), by the 25D 1伪-hydroxylase (CYP27B1). Blood 25D... Ge...
A method for the determination of vitamin D2 and vitamin D3 in fortified milk powders and infant and adult nutritional formulas is described. Samples are saponified at high temperature and lipid-soluble components are extracted into isoo... BD Gill,GA Abernethy,RJ Green,... - J AOAC Int 被...
产品信息: 产品名称: 维生素D2 中文同义词: 维生素 D2;丁二素;骨化醇;麦化骨化醇;麦角钙化(甾)醇;麦角骨化醇;维生素D2;alpha-骨化醇 英文名称: Vitamin D2 英文同义词: VITAMIN D;VITAMIN D2;VITAMIN D2 WATER;VIOS
Vitamin D2 is not safe with a serum 25(OH)D2 higher than 50 ng/ml, and the IOM board said as much. However, they did not distinguish between D3 and D2 which is a huge mistake. There does not appear to be any toxicity with vitamin D3 under 200 ng/ml of 25(OH)D3. So, ...