VITAMIN D AND MAGNESIUM
All nutrients require co-factors, and, while I have often mentioned that vitamin D works with vitamins A and K to build bones, and with vitamin A and iodine to maintain and repair mucous membranes, there is one other important cofactor that vitamin D requires: magnesium. Vitamin D uses magnesium to convert it from the inactive form to the active form, thereby “stealing” magnesium from the body, which is not a problem if you have plenty of magnesium stores in your body.
But, since magnesium deficiency is already widespread, what often happens is that people who start taking high levels of vitamin D, and find that it causes negative symptoms, may be worsening their already existing magnesium deficiency. And, if taking vitamin D supplements does not raise your blood levels of D, it may be because there is not sufficient magnesium in your body which is required to facilitate its conversion into the active form.
Here is a list of some of the symptoms experienced by some people taking high amounts of vitamin D: anxiety, constipation, headaches, heart palpitations, insomnia, muscle cramps, and increased pain levels in the bones or body. These are all also symptoms of magnesium deficiency, so if you experience these symptoms while taking vitamin D, and you are not already supplementing with magnesium, it may be a good idea to try adding magnesium (400 – 600 mg elemental, daily in divided dose) to your regimen before you give up on D. (Source) |
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