Vitamin D (also referred to as calciferol) is a fat-soluble vitamin that is naturally present in a few foods, added to others, and available as a dietary supplement. It is also produced …

DEFINING VITAMIN D SUFFICIENCY. Serum 25-hydroxyvitamin D — Vitamin D sufficiency is estimated by measuring 25-hydroxyvitamin D (25[OH]D or calcidiol) concentrations. The …

2013年2月15日 · Vitamin D therapy may be given daily or weekly with equal effectiveness; the dosage depends on the degree of deficiency. (SOR: C, based on an RCT and cohort study.) …

Brief algorithm for vitamin D dosing. In all those cases, 25OH-D levels should be checked at 1–1.5 months after the initiation of Vit. D supplementation or the enlargement of Vit. D dose, …

2023年10月2日 · For vitamin D levels below 25 nmol/L, the recommended dosage for adults and children ages 11 and older is 50,000 IU (1 capsule) once weekly. Adults should take it for 8 …

2024年12月20日 · How much vitamin D do you need for optimal health? In the United States, current guidelines suggest that consuming 400–800 International Units (IU), or 10–20 …

2023年8月10日 · Taking a multivitamin with vitamin D may help improve bone health. The recommended daily amount of vitamin D is 400 international units (IU) for children up to age …

2023年5月16日 · The "ideal" dose of vitamin D is determined by testing the individual's 25(OH)D level and increasing the vitamin D dose if the level is not within normal limits. Once a normal …

2017年4月25日 · Currently, different recommendations exist. The Institute of Medicine has placed the recommended dietary allowance, or RDA, for vitamin D at 600 international units (IU) per …

2024年10月25日 · Vitamin D, formally known as calciferol, is a fat-soluble nutrient that has two main responsibilities: helping calcium reach your bones (which keeps them strong) and …