Feb 17 2012

Calcium and the Importance in Nutrition

Posted by admin in Nutrition diet

The human body needs calcium more than any other mineral. A man weighing 70 kg. contains one kg. of calcium. About 99 percent of the quantity in the body is used for building strong bones and teeth and the remaining one percent is used by the blood, muscles and nerves.

Calcium performs many important functions. Without this mineral, the contractions of the heartwould be faulty, the muscles would not contract properly to make the limbs move and bloodwould not clot. Calcium stimulates enzymes in the digestive process and coordinates thefunctions of all other minerals in the body. Calcium is found in milk and milk products, wholewheat, leafy vegetables such as lettuce, spinach, and cabbage, carrots, watercress, oranges,lemons, almonds, figs and walnuts.

A daily intake of

about 0.4 to 0.6 grams of calcium isconsidered desirable for an adult. The requirement is larger for growing children and pregnantand lactating women. Deficiency may cause porous and fragile bones, tooth decay, heartpalpitations, muscle cramps, insomnia and irritability.

A large increase in the dietary supply of calcium is needed in tetany and when the bones aredecalcified due to poor calcium absorption, as in rickets, oesteomalacia and the malabsorptionsyndrome. Liberal quantity of calcium is also necessary when excessive calcium has been lostfrom the body as in hyperparathyroidism or chronic renal disease.

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