Normal vitamin D levels by age, sources, and toxicity - Medical News Today
2023年12月21日 · Generally adequate vitamin D levels in the blood are 20 ng/ml or above for adults. People aged 1–70 years should aim to get at least 15 mcg or 600 IU of vitamin D per day.
Vitamin D Deficiency: Causes, Symptoms & Treatment - Cleveland Clinic
2022年8月2日 · Vitamin D Deficiency. Vitamin D deficiency is a common vitamin deficiency that causes issues with your bones and muscles. It most commonly affects people over the age of 65 and people who have darker skin. It’s preventable and treatable. Find a Primary Care Provider.
Vitamin D - Health Professional Fact Sheet - Office of Dietary ...
An analysis of data from the 2015–2016 National Health and Nutrition Examination Survey (NHANES) found that average daily vitamin D intakes from foods and beverages were 5.1 mcg (204 IU) in men, 4.2 mcg (168 IU) in women, and 4.9 …
Vitamin D Deficiency > Fact Sheets - Yale Medicine
Vitamin D deficiency is the state of having inadequate amounts of vitamin D in your body, which may cause health problems like brittle bones and muscle weakness. There may be no symptoms and doctors don’t routinely check vitamin D levels, so …
Vitamin D - Mayo Clinic
2023年8月10日 · Its anti-inflammatory, antioxidant and neuroprotective properties support immune health, muscle function and brain cell activity. Vitamin D isn't naturally found in many foods, but you can get it from fortified milk, fortified cereal, and …
Vitamin D: What's the "right" level? - Harvard Health
2020年4月16日 · Based on their analysis, a more appropriate cutoff for vitamin D deficiency would be much lower, 12.5 ng/mL. They examined a massive amount of data from the National Health and Nutrition Examination Survey (NHANES) for 2007 through 2010 and found that less than 6% of Americans had vitamin D levels less than 12.5.
In the United States, most people have adequate blood levels of vitamin D. However, almost one out of four people have vitamin D blood levels that are too low or inadequate for bone and overall health. Some people are more likely than others to have trouble getting enough vitamin D: • Breastfed infants. Breast milk alone does not provide infants
Vitamin D numbers: what they really mean | Quest Diagnostics
Vitamin D deficiency may lead to elevated parathyroid hormone (PTH) levels (secondary hyperparathyroidism). If your patients' test results reveal that they are vitamin D deficient, the Endocrine Society recommends that they receive vitamin D …
Vitamin D Test: Purpose, Risks, and Results - Health
2 天之前 · Low vitamin D levels can weaken bones and increase the risks of falls and fractures. High vitamin D levels are rare but can cause serious symptoms such as muscle weakness, kidney stones, or ...
Vitamin D deficiency - Mayo Clinic
2022年10月7日 · The Recommended Dietary Allowance (RDA) for adults is 600 international units (IU) of vitamin D a day. That goes up to 800 IU a day for those older than age 70. To meet this level, choose foods that are rich in vitamin D.