I have found that eating calcium carbonate tablets (Tums, etc.)
occasionally on long rides, especially when it's hot, makes me feel
better. It both settles the stomach and prevents cramps. I did not
know, however, that the rate of calcium loss due to perspiration could
be as high as claimed by the article (hundreds mg/hour).

max

On Wed, Jul 1, 2009 at 1:57 PM, Bruce Berg<bberg@...> wrote:
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> An interesting New York Times article on bone density, or the loss of it, in
> competitive cyclists.  But it isn’t clear how much it applies to us long
> distance recreational riders.  It probably does say that drinking milk or
> other calcium rich beverages while on our brevets is probably a very good
> idea and suggests that we might be better off if we get some other form of
> exercise on a regular basis, be it weight lifting, running, hiking, etc, but
> probably not swimming.
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> Bruce
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> http://well.blogs.nytimes.com/2009/07/01/is-bicycling-bad-for-your-bones/?hp
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