Health and Human Development - Calcium
Gives structure to teeth and bones. Calcium is involved in muscle
contraction, nerve functioning, blood clotting, blood pressure and immune
Hormones, vitamin D and lactose (milk sugar) promote absorption in the
gastro-intestinal tract and utilisation.
Causes stunted growth in children and osteoporosis  (bone density
loss) in adults.
Constipation, increased risk of kidney stones and interference with
absorption of other minerals.
Found in milk and milk products, fish where the bones are eaten, tofu and
some greens, e.g. broccoli and legumes .
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