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Calcium



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Chapter 2 : Calcium



Calcium arrow_upward


  • Calcium is required for vascular contraction and vasodilation, muscle function, nerve transmission, intracellular signaling and hormonal secretion, though less than 1% of total body calcium is needed to support these critical metabolic functions.
  • Serum calcium is very tightly regulated and does not fluctuate with changes in dietary intakes
  • The body uses bone tissue as a reservoir for, and source of calcium, to maintain constant concentrations of calcium in blood, muscle, and intercellular fluids.

  • Functions of Calcium arrow_upward


  • Calcium is essential for:
    • Maintaining total body health
    • Maintaining normal growth and development
    • Keeping your bones and teeth strong over your lifetime (they contain 99% of the body's calcium, the remaining 1% is in blood)
    • Ensuring the proper functioning of muscles and nerves
    • Keeping the heart beating
    • Helping blood clotting and regulating blood pressure
    • Metabolising iron
    • The action of a number of hormones (particularly those associated with the thyroid and parathyroid glands)
    • Cell structure
    • Absorbing vitamin B12

    Sources of Calcium arrow_upward


  • Dairy products, such as milk, cheese, and yogurt
  • Canned salmon and sardines with bones
  • Leafy green vegetables, such as broccoli, spinach
  • Calcium-fortified foods - from orange juice to cereals and crackers
  • Ice cream, kale, oysters, ricotta

  • Daily Dose of Calcium arrow_upward



    Age

    Dose/day

    Infants

    Birth - 6 months

    210 mg

    7 months - 12 months

    270 mg

    Children

    1 -3 years

    500 mg

    4 - 8 years

    800 mg

    9 - 18 years

    1300 mg

    Adult

    19 – 50 years

    1000 mg

    51 years and older

    1200 mg



    Deficiency Symptoms of Calcium arrow_upward


  • The symptoms of calcium deficiency are:
    • One of the initial symptoms of calcium deficiency is muscle cramps.
    • Delay in sitting up, crawling and walking of babies
    • Tooth decay is another sign of calcium deficiency in the body
    • Heart becomes irregular
    • Nerves become extremely irritable
    • Poor sleep disorder
    • Weakness in the bones

    Excessive Intake and Toxicity Symptoms arrow_upward


  • A few of the possible calcium overdose symptoms include (but are not limited to):
    • Kidney stones
    • Excessive drowsiness
    • Muscle weakness
    • Nausea and vomiting
    • Frequent urination
    • Changes in the heart rate
    • Confusion
    • Constipation or diarrhea
    • Headaches
    • Coma


    Thank You from Kimavi arrow_upward


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