Calcium is needed for healthy bones, teeth and correct blood coagulation. It is used by the muscles to help produce energy and plays a role in heart-muscle function and muscle response. In the absence of adequate dietary calcium the body goes into a ‘negative calcium balance’, which forces it to extract calcium from the skeletal stores (bone) so it can supply many other bodily needs. This will of course weaken the bones over time if it is continual.
Abnormalities in coagulation and heart-muscle function rarely occur when calcium levels are balanced and optimal.
In addition, the elderly have a slower calcium uptake, and in women, the hormonal changes during menopause adversely affect calcium uptake. Alcohol is also responsible for a reduced uptake of Calcium.
The absorption of calcium can be positively influenced by vitamin D3. Vitamin D3 is important for correct absorption of calcium in the intestines and bones. Without sufficient vitamin D3, calcium will not integrate into the bones and as a result they will become soft. Calcium also plays a crucial role in nerve impulse transmission, is needed for the absorption of vitamin B12 (or B50 complex), for the activation of numerous enzymes and is involved in coagulation, cell growth and hormone metabolism. Calcium also contributes to the maintenance of a normal energy metabolism, to the healthy functioning of digestive enzymes, and plays a role in cell division and cell proliferation.
The uptake of calcium by the body is affected by numerous factors: Sufficient exercise and adequate vitamin D3 will help supply an increased uptake. Too little exercise and inadequate vitamin D3 will decrease uptake.
Magnesium should also be taken with calcium to help protect the heart. Magnesium can help avoid a build up of calcium in the arteries.
Calcium (as citrate) 630 mg, Vitamin D (as cholecalciferol) 400 IU.
Cellulose, dicalcium phosphate, silica, stearic acid, magnesium stearate and hydroxypropyl methylcellulose. Other Ingredients: Vegetable stearin, cellulose, cellulose gum, dicalcium phosphate, modified cellulose, magnesium stearate, silica and food glaze.
Contains no sugar, salt, dairy, yeast, wheat, soy, preservatives, artificial colours or flavours.
As a dietary supplement, adults take two tablets daily with a meal, or as directed by a health care professional.
Store in a cool, dry place and away from direct light.
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Kalluru R, Ames R, Mason B, et al. Bone density in healthy men after cessation of calcium supplements: 20-month follow-up of a randomized controlled trial. Osteoporos Int. 2015;26(1):173-8.
Matsuzaki H. Prevention of osteoporosis by foods and dietary supplements. Magnesium and bone metabolism. Clin Calcium. 2006;16(10):1655-60.