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Is Vitamin D3 Better Than D2?

Vitamin D3—sourced from sunlight exposure, animal, and plant sources—may be preferable to vitamin D2 sourced from fungi.

How Much Vitamin D Should You Take?

The safe dose of vitamin D supplementation to get most of the population to the optimal level is 2,000 IU a day, but the elderly and overweight may need more.

Are Calcium Supplements Effective?

What is the optimal daily dietary calcium intake and might benefits for your bones outweigh the risks to your heart from taking calcium supplements?

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