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Vitamin D deficiency and increased chronic headaches

Researchers from the University of Eastern Finland have shown that a vitamin D deficiency may increase the risk of chronic headache. The Kuopio Ischaemic Heart Disease Risk Factor Study, analysed the serum vitamin D levels and occurrence of headache in approximately 2,600 men between 42 and 60 years old in 1984-1989. In 68% of these men, the serum vitamin D level was below 50 nmol/l, which is generally considered to be a vitamin D deficiency. In the study chronic headache occurring at least once a week occurred in 250 men, and men reporting chronic headache had lower serum vitamin D levels than others. The study population was divided into four groups based on their serum vitamin D levels. The group with the lowest vitamin D levels had over a twofold increased risk of chronic headache in comparison to the group […]

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