Normal vitamin D levels by age, sources, and toxicity - Medical News Today
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.
Vitamin D: What's the "right" level? - Harvard Health
2020年4月16日 · The majority of folks have a level between 20 and 40, in my experience, and this is corroborated by the IOM's findings in that 2010 report. But in 2011, the respected Endocrine Society issued a report urging a much, much higher minimum blood level of vitamin D. At that time, their experts concluded: "Based on all the evidence, at a minimum, we ...
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 - Health Professional Fact Sheet - Office of Dietary ...
Vitamin D overview for health professionals. Research health effects, dosing, sources, deficiency symptoms, side effects, and interactions here.
Vitamin D Deficiency: Causes, Symptoms & Treatment - Cleveland Clinic
2022年8月2日 · Vitamin D deficiency means that you don’t have enough vitamin D in your body. It's common and primarily causes issues with your bones and muscles.
Vitamin D deficiency in adults: Definition, clinical manifestations ...
2024年7月29日 · Experts agree that levels lower than 20 ng/mL are suboptimal for skeletal health. The optimal serum 25 (OH)D concentrations for extraskeletal health have not been established. (See "Vitamin D and extraskeletal health".) The NAM supports 25 (OH)D concentrations above 20 ng/mL (50 nmol/L) [8].
What Vitamin D Dosage Is Best? - Healthline
2023年3月14日 · Basics. Requirements. Deficiency. Sources. Increased needs. Toxicity. Bottom line. Vitamin D dosage recommendations can vary depending on several factors, including your age, skin color, medical...
Vitamin D Deficiency > Fact Sheets - Yale Medicine
The actual prevalence of vitamin D deficiency depends on what is defined as a level of vitamin D in the blood that is considered sufficient to maintain musculoskeletal health. The Institute of Medicine has concluded that a level between 20-50 ng/mL of …
Mayo Clinic Q and A: How much vitamin D do I need?
2017年4月25日 · Mayo Clinic recommends that adults get at least the RDA of 600 IU. However, 1,000 to 2,000 IU per day of vitamin D from a supplement is generally safe, should help people achieve an adequate blood level of vitamin D, and may have additional health benefits.
Vitamin D Deficiency in Adults: When to Test and How to Treat
A wide “optimal” range for 25 (OH)D is reported (25-80 ng/mL), and differences of opinion exist as to the definitions of vitamin D insufficiency (sometimes reported as <30 ng/mL) and deficiency (<20 ng/mL). Mild-to-modest deficiency can be associated with osteoporosis and/or secondary HPT. Severe deficiency may lead to failure to mineralize ...