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Nature‘s Sunshine Calcium and Magnesium

What isĀ it?

Calcium is the most abundant mineral in the body, found in the bones and teeth. It is also needed for muscle contractions, nerve function and blood clotting.


Function How it helps
Bone Health

More than 99% of the calcium in the body is found in the bones and teeth. It helps stimulate the release of thyroid hormones which take calcium from the blood into the bones for normal bone tissue repair.

Muscular health and function Calcium is needed to enable muscles to contract and for the release of energy for muscle fuel.
Nerve health and function Influences the regulation of neurotransmitters in the nervous system. Muscle spasms and twitches due to hypersensitive nerves are linked with calcium deficiency.
Cardiovascular health Works with magnesium and potassium to pump excess sodium out of cells.
Blood clotting Required for the formation of blood platelets and clotting.


What is it used for?
Dental health



Bone health


Muscle spasms and twitches

Leg cramps

Acid stomach (as and antacid)




Nervous tension


Best food sources

Dairy products

Sardines & tinned salmon

Leafy green vegetables

Sunflower seeds

Nuts & seeds


Sesame seeds


Brewer’s yeast

Figs (dried)




Deficiency Symptoms



High blood pressure


Poor tooth formation

Dental caries

Impaired growth

Muscle spasms and twitches

Muscle spasms and twitches

Supplementation dosage range

500-1500mg per day

Other information

Alcoholics and people with absorption problems may need to supplement calcium.

The absorption of other minerals can be affected by calcium supplement, so if you are taking calcium for long periods it is advisable to supplement with a multi-mineral formula.



  • In order to avoid an increased risk of calcium deposition in the soft tissues (including kidney stones), daily dosages should be lower than 1000mg.

  • People with kidney stones, chronic kidney disease, prostate cance or hyperparathyroidism should not supplement calcium without first consulting their doctor.
  • Calcium supplements should not be taken with digitalis unless under medical supervision.
  • Calcium may interfere with the absorption of various drugs such as bisphosphanates (etidronate), fluoroquinolone antibiotics, 4-quinolones, tetracyclines, atenolol, nadolol, sotalok, rededronate, rofecoxib, thyroid medication and fluoride. It is recommended that calcium is taken at least 5 hours away from administration of the drug.
  • Taking calcium with the drug tamoxifen may lead to excessive blood calcium levels.
  • Unless vitamin C is taken at the same time, high dose calcium may reduce iron absorption.


Factors which deplete levels, impair absorption and/or inhibit activity:

Phytates found in whole grains and Soya products

Oxalates found in spinach, cocoa, swiss chard, rhubarb, beet greens

Aluminium containing antacids

Long term use of Laxatives

Anti-convulsant drugs

tea and coffee





High protein diets





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