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Vitamin D
Description: Vitamin D is necessary for the absorption of calcium for use in the bloodstream, preventing the body from losing calcium from bones for other uses.
Vitamin D increases calcium and Phosphorus absorption.
The main way the body gets Vitamin D is through exposure to sunlight. As a result, deficiencies are more common in winter or in areas where there is little sunlight.
Other causes for deficiency include vegan diets, malabsorption conditions, liver disease, kidney disease, and alcoholism.
Vitamin D, when used with calcium, provides some relief for migraines.1
Vitamin D, taken in a dose of 400 IU daily, slows the development of osteoarthritis in the knee.2,3
Calcium supplements are helpful both as a preventive measure and in the treatment of osteoporosis.4 Taken with Vitamin D to increase absorption,5 800 to 1200 mg daily is an effective supplemental dose

Natural Sources: Cod Liver Oil, Vitamin D Fortified Milk.

Useful in treatment of: migraines, osteoarthritis, osteoporosis.

Recommended Dosage: 400 IU daily.

Contraindications: None.

References:

1Thys-Jacobs S. Alleviation of migraines with therapeutic vitamin D and calcium. Headache 1994 Nov-Dec;34(10):590-2.
2Gloth, F. Vitamin D deficiency in home-bound elderly persons, JAMA, 274: 1683-6, 1995.
3McAlindon, T. Relation of dietary intake and serum levels of vitamin D to progression of osteoarthritis of the knee among participants in the Framingham study, Annals of Internal Medicine, 125: 353-9, 1996b.
4Reid IR, Ames RW, Evans MC, et al. Long-term effects of calcium supplementation on bone loss and fractures in postmenopausal women: a randomized controlled trial. Am J Med 1995;98:331–5.
5Lips P, Graafmans WC, Ooms ME, et al. Vitamin D supplementation and fracture incidence in elderly persons. Ann Intern Med 1996;124:400–6.
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