
Vitamin D - Mayo Clinic
Mar 21, 2025 · Taking a vitamin D supplement or 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 …
How much Vitamin D should you take? - Drugs.com
Aug 11, 2025 · Most adults need 600–800 International Units (IU), or 15–20 micrograms (mcg), of vitamin D per day to support bone and immune health. The exact amount depends on your age, …
What Vitamin D Dosage Is Best? - Healthline
Dec 20, 2024 · 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 97%–98% of all …
Vitamin D: How Much to Take Per Day and Max Dose - GoodRx
Aug 1, 2025 · According to most medical experts, the recommended dietary allowance (RDA) of vitamin D for adults up to age 70 is 600 IU. But some professional organizations recommend 20 mcg per …
What Are the Normal Vitamin D Levels by Age? - Verywell Health
Nov 30, 2025 · 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, and 400 IU for …
How much vitamin D do I need? The amount of vitamin D you need each day depends on your age. Average daily recommended amounts are listed below in micrograms (mcg) and International Units …
New guidelines released for vitamin D testing and supplementation
Nov 1, 2024 · Updated guidelines say adults don't need routine testing of vitamin D levels. However, they should aim for daily vitamin D intake of 600 international units (IU) until age 70, and 800 IU after …
The Ultimate Guide to Vitamin D Dosage for Every Age
Dec 23, 2025 · Find the right vitamin D dosage by age for your family. Support bone health and immunity at every stage.
Vitamin D deficiencies: What to know - MD Anderson Cancer Center
How much vitamin D should you be getting – and what should you do if you need more? We called on a dietitian and a dermatologist for answers. Read on for their tips on how to safely get enough vitamin …
New Guidelines Highlight Who Should Be Getting More Than the ...
Nov 18, 2025 · New guidelines share how much vitamin D people should take based on their age and certain conditions. Not everyone should exceed the DRI of vitamin D, and vitamin D deficiency …