Calcium Levels and Vitamin D by: Kerri Knox, RN-The Immune Health Queen!
Calcium has an uncanny ability to maintain it's blood level within a normal range unless there is a LARGE problem. Actually calcium will try to keep blood levels normal even in the face of a desperate shortage of calcium. Your body will prefer to pull calcium out of your bones rather than have a low blood calcium level. So, in reality, your Vitamin D Level actually tells you more about your calcium status than your calcium level does! This is because you just don't absorb dietary calcium well unless you have an adequate amount of vitamin d. So, even if you have plenty of calcium in your blood, it will often just get dumped out in your urine if you don't have adequate vitamin D.
And that is why Vitamin D is so imperative to prevent osteoporosis. Vitamin D will allow the calcium that is in your blood to actually get absorbed instead of getting dumped out. So, this is why Vitamin D is almost as important, if not MORE important than calcium for the prevention of osteoporosis.
And you can actually have osteoporosis even if you have had a normal calcium level all of your life! And if you think about it, why would you have a normal vitamin D level just because your calcium level is normal. They are two entirely separate nutrients that are rarely in the same foods. You can't have a normal vitamin D level unless you actually take in vitamin d in one way or another.
Kerri Knox, RN- The Immune Health Queen Functional Medicine Practitioner Easy Immune Health.com
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