Osteoporosis 2- Salt (& Hypertension?)

We all know that excessive amounts of salt are not good.  The link between sodium and hypertension is very well established although we're still learning more about the many ways that salt is damaging.  Salt can also adversely influence bone health. In fact, there is some suggestion that hypertension and bone health may be related.

Dietary calcium has long been considered an essential part of managing hypertension.  Researchers are unclear on exactly how calcium is helpful, but it seems to be necessary.  Calcium supplements have thus far been controversial in lowering blood pressure as several studies indicate no effect.  (As a side note, this is further evidence that food is far more important than supplements).  But why all the talk about hypertension when we're discussing osteoporosis?  Because the two conditions appear to be linked.

This paper cites a genetic link between the two conditions and it cites several studies that show that managing blood pressure can actually improve bone health.  ACE inhibitors are a common medication used to lower blood pressure; a helpful side effect is that they seem to help bone density.  Don't consider this my endorsement of a purely pharmacological approach to managing bone density.  Consider this as evidence that the biology of the two conditions are connected.  So what?

It has long been known that excess salt intake will increase calcium excretion through the kidneys.  In other words, the more salt you ingest, the more calcium you will pee out.  When so many Americans struggle to take in sufficient amounts of calcium, it would seem wise to keep as much of it in our body as possible.  In fact, people with higher sodium intake have been shown to have lower bone mineral density.

Step number 1 in improving bone health; watch your salt intake.  It may help lower your blood pressure too.