- Vitamin D - Mayo Clinic
A simple blood test can check the levels of this vitamin in your blood 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 age 12 months, 600 IU for people ages 1 to 70 years, and 800 IU for people over 70 years
- 8 Best Vitamin D Supplements for 2026 - Healthline
Vitamin D is essential for bone health, muscle development, and more Here are the best supplements on the market, according to our dietitians
- Vitamin D - Uses, Side Effects, And More - WebMD
Learn more about Vitamin D uses, effectiveness, possible side effects, interactions, dosage, user ratings and products that contain Vitamin D
- Best Vitamin D Supplements: Reviewed In 2025 – Forbes Health
Discover the best vitamin D supplements available, according to experts Compare our top-rated picks to choose the right option for you
- The Best Vitamin D Supplement for Women - Prevention
Doctors and dietitians share what to look for in a vitamin D supplement, plus why the vitamin is important in the body
- Best vitamin D supplements 2025 - BBC Good Food
In the UK we’re advised to take vitamin D during the winter months, as we mainly source it from sunlight Read our review to discover the different types of supplements you can take, and the best brands to choose
- Best Vitamin D Supplements - U. S. News
Best Vitamin D Supplements Our panel of pharmacists ranked the best Vitamin D supplements, with Nature Made topping the list as the top-recommended brand
- Vitamin D Supplement Reviews Top Picks - ConsumerLab. com
See our tests and comparisons of vitamin D supplements and find out which we consider the best to use -- including those with calcium Also learn how to choose the right dose and form of vitamin D, how to take vitamin D to get the most from it, what vitamin D does and doesn't do, and how much is "too much" vitamin D
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