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Information on the latest vitamin D news and research.

Find out more information on deficiency, supplementation, sun exposure, and how vitamin D relates to your health.

Hi, Is it actually neccesary to supplement Vitamin K along with Vitamin D? According to some authors on the web tze supplementation of Vitamin D could lead to an “functional” Vitamin K-deficiency, because Vitamin K will be used up to deal with the additional Calcium due to hiher Vitamin D-Levels. (Please excuse my rather bad english for I am no native speaker). Axel Berendes, Germany

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Asked by  ABerendes on October 21, 2014