Here's how calcium deficiency occurs
As with other minerals, the
body has a marvelous system for keeping the concentration of calcium in the blood
and tissues just right. This is needed because if calcium concentrations fall
too low or get too high, certain organs will fail to function. The first checkpoint
is in the intestines. If you eat too much calcium or already have enough calcium
in your blood, the intestines simply absorb less of the calcium in the food you
eat. If your body needs calcium, the intestine absorbs more.
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