Expert recommendations for vitamin D intake differ between governmental agencies and practice guidelines from medical societies due to differences in the definition of vitamin D deficiency, insufficiency and sufficiency based on serum 25-hydroxyvitamin D [25(OH)D] concentrations. In addition, separate ...
Currently, there is controversy regarding what is the cut-off level for vitamin D deficiency with recommendations ranging from less than 20 ng/ml of 25(OH)D to less than 12 ng/ml of 25(OH)D. Is vitamin D water soluble? No, vitamin D is fat soluble. This means it is stored within ...
Hence, 25(OH)D levels increase in proportion to vitamin D intake and, plasma 25(OH)D levels are a good indicator of vitamin D status. The 25(OH)D produced in the liver is returned to circulation. Severe liver failure affects the function of the CYP2R1 enzyme. Moreover, loss-of-...
Dietary vitamin D intake was assessed among residents in a long-term care (LTC) facility, so that recommendations could be made about vitamin D supplementation. Three-day tray audits were completed for all meals and snacks, including nutritional supplements (Boost and/or high-protein pudding). To...
Vitamin D is a vitamin pro-hormone which can be taken exogenously from the diet or supplements, or can be synthesised cutaneously through the action of summer sunlight on skin as shown in Fig.1[1]. While oral intake is an important source of vitamin D, the major physiological source is ...
Vitamin D intakes are lower than dietary recommendations in most populations, and thus, a low vitamin D status is widespread, especially during winter.We i... Katja,H,Madsen,... - 《American Journal of Clinical Nutrition》 被引量: 82发表: 2013年 加载更多研究点推荐 Vitamin D ...
The IOM recommendations for vitamin D fail in a major way on logic, on science, and on effective public health guidance. Moreover, by failing to use a phys... RP Heaney,MF Holick - 《Journal of Bone & Mineral Research the Official Journal of the American Society for Bone & Mineral Rese...
Dietary intake recommendations for the essential micronutrient vitamin E established in many countries vary, and it appears to be still a challenge to define these despite the wealth of data published. The approaches and markers used to define vitamin E intake in the reports from the European Food...
Vitamin D aids in the maintenance of bone health by enabling calcium absorption, and low concentrations of vitamin D are implicated in a host of chronic disease states. Adequate vitamin D intake during adolescence and young adulthood is crucial, as peak bone mass is formed during this time. How...
Vitamin D is essential for the absorption of calcium– which is vital to maintain healthy bones and teeth. A lack of this vitamin can lead to a number of serious conditions including rickets in children and osteomalacia in adults, which cause bones to soften, weaken and in some cases become ...