Calcium is one of the vital nutrients that all living organisms need, including humans. It is the most abundant mineral in the body, and humans need Calcium to build and maintain strong bones. It is also necessary to maintain healthy communication between the brain and other body parts. In addition, it plays a role in muscle movement and cardiovascular function.
Although calcium supplements are readily available in different forms, Calcium which is found naturally in fruits, vegetables, and foods, has been proven to be more beneficial in providing the body with the needed amount. Most experts agree that it is better to obtain nutrients from natural food sources, but sometimes it is impossible to get enough in this way. Some studies have suggested, however, that calcium supplementation could be hazardous.
Calcium absorption in the body is vitamin D-dependent; therefore, the bioavailability of this mineral depends upon vitamin D intake and status. The absorption efficiency is related to physiological requirements for Calcium and is dose-dependent. Some minerals and substances have been shown to inhibit the oral absorption of Calcium. Some of these compounds include;
• Phytic acid-containing diet—Phytic acid binds Calcium and other minerals, making them insoluble and not absorbable in the intestines.
• Oxalic acid – food high in oxalic acid also impedes calcium absorption by binding the mineral.
• High Sodium levels — Excessive salt can interfere with calcium absorption from the intestines.
• Magnesium – Magnesium competes with calcium supplements for absorption in the human guts.
• Insufficient Vitamin D — Calcium is Vitamin D-dependent for its absorption from the guts.
• Caffeine consumption — The caffeine in coffee and tea acts as a mild diuretic so that valuable Calcium is excreted before the body can use it.
• Other factors that may limit the absorption of Calcium from the gut include; smoking and Celiac Disease.
Calcium is essential for building and maintaining healthy bones and teeth. Among other roles, it may also help manage blood pressure. It is best to obtain sufficient Calcium through dietary sources, such as dairy products, green leafy vegetables, and almonds. Due to individual differences in requirements, experts do not recommend calcium supplementation as they are poorly absorbed. However, a doctor may recommend supplementation for some people based on some pathological conditions.
Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The contents of this website are based upon the views of Dr. Walker and his experience. This product is not intended as medical advice nor to diagnose, treat, cure or prevent any disease. The information is likewise not to replace the advice of a qualified health care provider. The information provided herein is intended as a sharing of general knowledge only and is not intended to be, nor is it, medical advice or a substitute for medical advice. That being said, please consult your healthcare provider before using supplements or providing supplements to children under the age of 18. If you have or suspect you have, a specific medical condition or disease, please consult your healthcare provider.
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