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What should I know before taking vitamin D?

The typical maximum amount per day of vitamin D is 2000 international units. Larger doses may be unsafe and result in high levels of calcium in the system. Some conditions, such as hypoparathyroidism, may require much higher levels for one to two weeks. Also, you should remember that vitamins are considered supplements. Herbs and supplements are not regulated by the United States Food and Drug Administration. So read the label carefully since there is no guarantee on safety, purity, strength, or effectiveness.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.