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Do people in cold countries or regions have low vitamin D?

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Yes. For most of us live in cold climate the making of vit D by the skin basically ceases in the winter months. However, living in cold climate is only one of the many risk factors for low vit D. Low dietary vitamin D intake, especially in older individuals, causes low vit D. read more

Low dietary vitamin D intake, especially in older individuals, causes low vit D. In a study of postmenopausal women living in France, mean daily vitamin D intake from food was 144.8 IU/day. Recommended dose is 800–1000 iu per day. read more

Patterns of disease also point to the importance of vitamin D. Multiple ­sclerosis, a degenerative neurological condition which affects 100,000 people in the UK, is much more common in northern ­climates, where lack of sunlight means vitamin D deficiency is common. read more

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