How much vitamin D supplementation do I need if I am vitamin D deficient?

Because many older peoples' diets are deficient in vitamin D, a vitamin D supplement, often in combination with calcium, is recommended. For most people, 800 to 1,000 units per day from supplements and dietary sources will suffice. For those with severe deficiency, a prescription dose of vitamin D is necessary for several months along with a supplement to be continued indefinitely.

If you think you may be vitamin D deficient -- many older people are -- check with your doctor about getting a blood test or start taking a supplement and spend a little more time outdoors in the sun. Don’t forget your sunscreen!

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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.