Vitamin d the calcium homeostatic steroid hormone

As they get older, millions of people (mostly women, but men too) develop, or are at risk of, osteoporosis, where bones become fragile and may fracture if one falls. It is one consequence of not getting enough calcium and vitamin D over the long term. Supplements of both vitamin D 3 (at 700–800 IU/day) and calcium (500–1,200 mg /day) have been shown to reduce the risk of bone loss and fractures in elderly people aged 62–85 years. Men and women should talk with their health care providers about their needs for vitamin D (and calcium) as part of an overall plan to prevent or treat osteoporosis.

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Her bottom line advice: In general, older people can achieve healthy levels of vitamin D by taking the recommended 800 IU of vitamin D a day and don’t need to be tested.

“But if you fall into a high-risk group, you need more than that,” says Dawson-Hughes, who was not involved in the report. People who spend little time in the sun, use sunscreen whenever they go outside, have dark skin or are overweight are among those considered high-risk. "These men and women should be tested,” she adds.

If the new recommendations leave you confused, you're not alone. Keep in mind that these numbers are important for developing national nutritional guidelines for food programs. When it comes to your own health, you might want to have a heart-to-heart talk with your doctor.

Applies to the following strength(s): 600 mg-400 intl units ; 600 mg-800 intl units ; 250 mg-400 intl units ; 600 mg-200 units ; 232 mg-200 intl units ; 117 mg-133 intl units ; 250 mg-125 units ; 500 mg-125 units ; 500 mg-200 intl units ; 315 mg-250 intl units ; 200 mg-250 intl units ; 250 mg-200 intl units ; 600 mg-125 units ; 500 mg-100 intl units ; 500 mg-600 intl units ; 500 mg-400 intl units ; 315 mg-200 intl units ; 600 mg-500 intl units ; 250 mg-250 intl units ; 250 mg-500 intl units ; 600 mg-200 intl units ; 105 mg-120 intl units ; 500 mg-500 intl units/5 g

It’s also possible to increase vitamin D levels by going outside more. About 15 minutes of sun exposure (without sunscreen on) is usually enough to build up vitamin D levels. Several factors can influence the amount of sun exposure you get, including the time of year, cloud cover, and the time of day (the sun’s rays are more direct during the middle of the day). Another consideration is that ultraviolet B radiation can’t penetrate glass. This type of radiation is what stimulates vitamin D production. So even if you’re taking in sunlight through a window, you won’t get the benefit of vitamin D production.

Calcium and vitamin D are two essential nutrients long known for their role in bone health. But since 2000, the public has heard conflicting messages about other benefits of these nutrients—especially vitamin D—and also about how much calcium and vitamin D they need to be healthy. To help clarify this issue, the United States and Canadian governments asked the IOM to assess the current data on health outcomes associated with calcium and vitamin D, as well as updating the nutrient reference values, known as Dietary Reference Intakes (DRIs). 

Vitamin d the calcium homeostatic steroid hormone

vitamin d the calcium homeostatic steroid hormone

Applies to the following strength(s): 600 mg-400 intl units ; 600 mg-800 intl units ; 250 mg-400 intl units ; 600 mg-200 units ; 232 mg-200 intl units ; 117 mg-133 intl units ; 250 mg-125 units ; 500 mg-125 units ; 500 mg-200 intl units ; 315 mg-250 intl units ; 200 mg-250 intl units ; 250 mg-200 intl units ; 600 mg-125 units ; 500 mg-100 intl units ; 500 mg-600 intl units ; 500 mg-400 intl units ; 315 mg-200 intl units ; 600 mg-500 intl units ; 250 mg-250 intl units ; 250 mg-500 intl units ; 600 mg-200 intl units ; 105 mg-120 intl units ; 500 mg-500 intl units/5 g

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