How does vitamin D help prevent osteoporosis?

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Vitamin D helps the intestine absorb calcium and phosphorus into the teeth and bones, making them stronger and helping to guard against fractures. When the body has an insufficient supply of this vitamin, blood levels of calcium and phosphorus also drop, causing the body to leach these minerals from the bones. Most children get enough vitamin D in fortified milk, which contains 100 IU per 8-ounce glass. Because this is only one-fourth of the 400 IU daily required to build strong bones, sunlight can provide the rest. 
Stop Osteoarthritis Now: Halting the Baby Boomers' Disease

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Stop Osteoarthritis Now: Halting the Baby Boomers' Disease

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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.