Vitamin D: What's the "right" level? - Harvard Health
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…
Truly Optimal Vitamin D Levels Are Higher Than You Might Think
2021年9月19日 · Scientific literature and health experts assert that 50+ ng/ml, not 30 ng/ml, is the optimal serum vitamin D level we should all strive for to support our health and well-being.
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.
What Is the Optimal Vitamin D Level? - NutritionFacts.org
2019年4月30日 · If we measure vitamin D levels in those living traditional lives in the cradle of humanity, a normal vitamin D level would be over 100 nmol/L (40 ng/ml).
Vitamin D - Health Professional Fact Sheet - Office of Dietary ...
The results of this analysis showed that 0.5 mcg (20 IU) to 214 mcg (8,570 IU)/day vitamin D supplementation (mean of 2,795 IU) for 6 weeks to 3 years reduced serum total cholesterol, low-density lipoprotein cholesterol, and triglyceride levels, but …
Vitamin D deficiency in adults: Definition, clinical ... - UpToDate
2024年7月29日 · This topic will review the definition, clinical manifestations, and treatment of vitamin D deficiency in adults. The causes of vitamin D deficiency, vitamin D supplementation in osteoporosis, and the treatment of vitamin D deficiency in children are reviewed separately.
Vitamin D - Mayo Clinic
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 12 months, 600 IU for people ages 1 to 70 years, and 800 IU for people over 70 years.
How Much Vitamin D Should You Take For Optimal Health?
2023年6月23日 · Vitamin D recommended intake is 400–800 IU/day or 10–20 micrograms, depending on your age. What are the optimal blood levels of vitamin D? Doctors assess blood levels of vitamin D...
Vitamin D Deficiency: Causes, Symptoms & Treatment - Cleveland Clinic
2022年8月2日 · Home / Health Library / Diseases & Conditions / 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. Schedule an Appointment.
Vitamin D Dosing: Basic Principles and a Brief Algorithm (2021 …
PMCID: PMC8709011 PMID: 34959969. Abstract. Nowadays, in modern societies, many people can be at high risk to have low vitamin D levels. Therefore, testing of serum 25-hydroxy-vitamin D (25OH-D) levels should be performed before prescribing them vitamin D supplementation.