The number of people in Donegal with a vitamin D deficiency is so high that scientists initially thought there was a problem with their testing equipment.
A Donegal GP who examined 10 thousand test results from Letterkenny University Lab found that 75 percent of samples had insufficient vitamin D levels.
The Irish Times reports that Dr. Martin Coyne blamed the severe lack of sunshine in the county for the low levels of vitamin D and the high number of people suffering with osteoporosis.
