2023年12月21日 · The following table provides rough ranges for low, normal, and high vitamin D levels for the average adult in nmol/ml and ng/ml.

2025年1月14日 · Vitamin D levels can be measured with a blood test. This test can indicate whether you have adequate levels, are at risk of a vitamin D deficiency, or have levels that are too high. Levels that are too low or too high could be harmful to your health. The 25-hydroxy vitamin D blood test can determine ...

2020年4月16日 · At that time, their experts concluded: "Based on all the evidence, at a minimum, we recommend vitamin D levels of 30 ng/mL, and because of the vagaries of some of the assays, to guarantee sufficiency, we recommend between 40 and 60 ng/mL for both children and adults." But wait, there's more…

Vitamin D levels of 30 to 100 ng/mL are considered optimal. Vitamin D levels between 20 and 29 ng/mL are considered suboptimal. Vitamin D insufficiency may lead to elevated parathyroid hormone (PTH) levels (secondary hyperparathyroidism). Vitamin D levels <20 ng/mL are considered vitamin D deficient.

The normal range of 25-hydroxy vitamin D is measured as nanograms per milliliter (ng/mL) or nanomoles/liter (nmol/L). Many experts recommend a level from 20 and 40 ng/mL or 60 and 100 nmol/L. Others recommend a level from 30 to 50 ng/mL (75 to 125 nmol/L).

Vitamin D levels: what's normal? What should vitamin D levels be to avoid deficiency and support health? The National Institutes of Health (NIH) reports that a vitamin D level between 20-50 nanograms/milliliter (ng/mL) is typically within the adequate range for healthy individuals. [1] Easily check your vitamin D levels with the at-home vitamin ...

Experts disagree about the terms that should be used to describe these ranges, whether these ranges adequately reflect the evidence, and whether these ranges reflect clinical thresholds for action related to supplementation.

The normal range of 25-hydroxy vitamin D is measured as nanograms per milliliter (ng/mL) or nanomoles/liter (nmol/L). Many experts recommend a level from 20 and 40 ng/mL or 60 and 100 nmol/L. Others recommend a level from 30 to 50 ng/mL (75 to 125 nmol/L). The examples above are common measurements for results of these tests.

2023年4月9日 · The Endocrine Society, the National and International Osteoporosis Foundation, and the American Geriatric Society define vitamin D deficiency as the level of 25-hydroxyvitamin (25 OH D) of less than 30 ng/mL. The Endocrine Society recommends a preferred range of …

Because vitamin D increases calcium absorption in the gastrointestinal tract, vitamin D toxicity results in marked hypercalcemia (total calcium greater than 11.1 mg/dL, beyond the normal range of 8.4 to 10.2 mg/dL), hypercalciuria, and high serum 25(OH)D levels (typically greater than 375 nmol/l [150 ng/mL]) . Hypercalcemia, in turn, can lead ...