Vitamin D - Mayo Clinic
2023年8月10日 · 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 …
What Vitamin D Dosage Is Best? - Healthline
2024年12月20日 · In the United States, current guidelines suggest that consuming 400–800 International Units (IU), or 10–20 micrograms (mcg), of vitamin D should meet the needs of …
Vitamin D: Benefits and How Much You Need - Cleveland Clinic …
2024年10月25日 · Studies show that when your body has enough vitamin D, its overall calcium absorption is 30% to 40%. But when vitamin D levels are low, calcium absorption from food is …
What Are the Normal Vitamin D Levels by Age? - Verywell Health
2025年1月14日 · According to the National Institutes of Health Office of Dietary Supplements, the average recommended daily intake of vitamin D for most adults, children, and teens is 600 IU, …
Mayo Clinic Q and A: How much vitamin D do I need?
2017年4月25日 · The Institute of Medicine has placed the recommended dietary allowance, or RDA, for vitamin D at 600 international units (IU) per day for young adults and 800 IU per day …
What Is the Correct Dosage of Vitamin D for Adults?
2024年2月23日 · According to the National Institutes of Health’s Office of Dietary Supplements, the current recommended daily amount for vitamin D (in micrograms or International Units) is …
Vitamin D: How Much to Take Per Day and Max Dose - GoodRx
2024年4月5日 · According to most medical experts, the recommended dietary allowance (RDA) of vitamin D for adults up to age 70 is 600 IU. But the FDA recommends 20 mcg per day, or 800 …
High-Dose Vitamin D Benefits and Risks: What Research Reveals
2024年11月10日 · High-dose vitamin D supplementation refers to intake levels significantly exceeding the National Institutes of Health (NIH) recommendations of 600 to 800 IU per day. …
Routine monitoring of 25OH Vitamin D level is not required or recommended. Vitamin D is required for bone and muscle health. Deficiency can lead to rickets or osteomalacia, but …
Vitamin D - NHS
Children from the age of 1 year and adults need 10 micrograms (mcg) of vitamin D a day. This includes pregnant and breastfeeding women, and people at risk of vitamin D deficiency. …