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“A lack or excess of this mineral can lead to very different problems, from bone resorption to forgetfulness, kidney stone formation to heart attack,” Dr. said, noting that the balance of calcium in the body is vital.

Calcium, the benefits of which are known to everyone, is also a very important mineral for the nervous and muscle system. Without calcium, one cell cannot muscle with another, our muscles cannot contract. It also has an important role in blood pressure and clotting. But an excess of calcium, as well as a lack of it, has serious health risks.

Turkey Medicals member and Istanbul Istinye University, Medical Park Hospital head of department Internal Medicine Specialist, Prof. Dr. explained what needs to be known about this mineral as follows…


An adult human body has an average of one thousand 200 g of calcium. Of this amount, 99 percent is found in bones, and up to 1 percent is dissolved in body fluids. Calcium is one of the most important building blocks of the cells that make up the tissues of the body. Mineral necessary for the contraction of the heart muscle and other muscles. On an average diet, there are 400-1000 mg of calcium. Calcium absorption is carried out in the small intestine, it is excreted from the body through feces, sweat, and most often through the kidneys. Calcium balance is very important for healthy living. This balance is maintained by the parathyroid gland and vitamin D, located right next to the thyroid organ located on the neck. If the serum calcium level is below 8.5 mg/dl, it is called hypocalcemia (low calcium).

A low level of calcium is most often caused by a lack of vitamin D. Removal of the parathyroid glands during thyroid surgery, parathyroid glands, damage to the head and neck area and neck radiation therapy after surgical operations applied to other hypocalcemia may develop.


A sudden low calcium level can cause involuntary seizures similar to epilepsy, widespread drowsiness in the body, breathing difficulties similar to asthma, low blood pressure, signs of heart failure. In chronically occurring calcium deficiency, signs such as cataracts, tooth and nail disorders, personality changes, depression, psychosis and dementia can be observed. It has been found that some of the patients who have been treated for epilepsy for a long time have low calcium levels. Such patients often turn to neuropsychiatric clinics and often do not receive a diagnosis for a long time.


When calcium is too much in the body (hypercalcemia), it also accumulates in the tissues and calcifications occur. This is the most important cause of calcifications. The more calcium deposits in the vessels, the more common is arteriosclerosis. This, in turn, indicates an increased risk of high blood pressure and a heart attack. An increase in calcium also occurs with cases of cancer. It can lead to signs such as palpitations, nausea, vomiting, depression, consciousness disorders, constipation, a mechanical taste in the mouth, frequent urination. If the calcium level is outside the normal limits in the blood tests, the level of parathyroid hormone, vitamin D and phosphorus should be looked at.


For general health and calcium balance, the sun’s rays should definitely be used. A 20-30-minute sun bath per day will be enough.

For a sufficient calcium intake, green leafy vegetables and fruits should definitely be in the diet. Not enough calcium can be obtained from animal products (meat, milk, dairy products). Because these products have an acidic structure, the body draws a lot of calcium and magnesium from the bones to maintain balance, and calcium balance cannot be achieved because there is too much calcium excreted in the urine.

Therefore, its excessive consumption is not recommended. In cases where all these measures are insufficient, 2-6 grams of calcium should be taken per day, and the diet should be supplemented with vitamin D.

Before taking calcium supplements, you should try to get this necessary substance from food. But if there is still a need for calcium, despite the necessary thoroughness in nutrition, only then the drug should be used under the supervision of a Turkish doctor.


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President of Organ Transplant Center at MedicalPark Hospital Antalya

Turkey's world-renowned organ transplant specialist. Dr. Demirbaş has 104 international publications and 102 national publications.

Physician's Resume:

Born on August 7, 1963 in Çorum, Prof. Dr. Alper Demirbaş has been continuing his work as the President of MedicalPark Antalya Hospital Organ Transplantation Center since 2008.

Prof. who performed the first tissue incompatible kidney transplant in Turkey, the first blood type incompatible kidney transplant, the first kidney-pancreas transplant program and the first cadaveric donor and live donor liver transplant in Antalya. Dr. As of August 2016, Alper Demirbaş has performed 4900 kidney transplants, 500 liver transplants and 95 pancreas transplants.

In addition to being the chairman of 6 national congresses, he has also been an invited speaker at 12 international and 65 national scientific congresses. Dr. Alper Demirbaş was married and the father of 1 girl and 1 boy.


Eczacibasi Medical Award of 2002, Akdeniz University Service Award of 2005, Izder Medical Man of the Year Award of 2006, BÖHAK Medical Man of the Year Award of 2007, Sabah Mediterranean Newspaper Scientist of the Year Award of 2007, ANTIKAD Scientist of the Year Award of 2009, Social Ethics Association Award of 2010, Işık University Medical Man of the Year Award of 2015, VTV Antalya's Brand Value Award of 2015.


Doctor of Medicine Degree Hacettepe University Faculty of Medicine Ankara, General Surgeon Ministry of Health Turkey EKFMG (0-477-343-8), University of Miami School of Medicine Member of Multiple Organ Transplant, ASTS Multiorgan Transplant Scholarship. Lecturer at Kyoto University. Lecturer at University of Essen, Research assistant at the University of Cambridge .

Professional Members:

American Society of Transplant Surgeons, American Transplantation Society Nominated, Middle East and Southern Africa Council Transplantation Society 2007, International Liver Transplantation Association, Turkish Transplantation Association, Turkish Society of Surgery, Turkish Hepatobiliary Surgery Association.


Our website contents consist of articles approved by our Web and Medical Editorial Board with the contributions of our physicians. Our contents are prepared only for informational purposes for public benefit. Be sure to consult your doctor for diagnosis and treatment.
Medically Reviewed by Professor Doctor Alper Demirbaş
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