- Related Topics:
- calcium
- mineral deficiency
- hypocalcemia
calcium deficiency
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What is calcium and why is it important for the body?
Calcium is a mineral vital for the human body. About 99% of it is stored in bones and teeth, providing strength and rigidity. The remaining 1% circulates in the bloodstream, facilitating muscle contraction, nerve impulse transmission, blood clotting, hormone secretion, and enzyme function.
Calcium deficiency can result from insufficient calcium intake or improper calcium utilization. A mild deficiency may contribute to osteoporosis, while severe deficiency (hypocalcemia) can cause tetany, characterized by numbness, muscle spasms, and aches. Rickets may result from faulty calcium metabolism during childhood.
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What is calcium deficiency?
Calcium deficiency occurs when the body doesn't have enough calcium or cannot properly use it. Since 99% of the body's calcium is stored in the bones and teeth, a deficiency can affect bone health.
Calcium is vital for muscle contraction, nerve impulse transmission, blood clotting, and hormone regulation. Vitamin D is needed for efficient calcium absorption in the small intestine. The parathyroid and thyroid glands regulate calcium levels in the blood.
Long-term mild calcium deficiency may contribute to osteoporosis, characterized by thinning bones. Severe deficiency, or hypocalcemia, can cause tetany, with symptoms like numbness, muscle spasms, and aches. Food sources of calcium include dairy products, leafy green vegetables, and seafood.
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What are some common symptoms of calcium deficiency?
Calcium deficiency occurs when the body doesn't have enough calcium or cannot use it properly. Most of the body's calcium is stored in the bones and teeth, with the rest circulating in the bloodstream to support muscle contraction, nerve impulse transmission, and hormone secretion.
Symptoms of severe calcium deficiency, or hypocalcemia, include numbness and tingling around the mouth and fingertips, as well as muscle aches and spasms. A long-term, mild deficiency may contribute to osteoporosis, characterized by thinning of the bones. In children, faulty calcium metabolism can result in rickets. Recent research also suggests that calcium deficiency may be linked to hypertension and colorectal cancer.
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How does calcium deficiency affect bones and teeth?
Calcium is a chief supportive element in bones and teeth, with 99% of the body's calcium residing there. A deficiency can compromise bone and teeth's strength and rigidity.
Inadequate calcium intake forces the body to extract calcium from the bones to maintain necessary levels in the blood for other functions. Over the long term, this can contribute to osteoporosis, characterized by thinning bones, and in children, may result in rickets. With rickets, the bones soften and become deformed due to insufficient vitamin D.
Hypocalcification, caused by insufficient calcium, can lead to the formation of soft enamel.
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What causes calcium deficiency in people?
Calcium deficiency arises when calcium intake is insufficient or not properly utilized by the body. The most common causes include inadequate dietary intake of calcium and/or vitamin D, which is needed for calcium absorption. Hormonal imbalances involving parathyroid hormone and calcitonin, which regulate calcium levels in the blood, can also lead to deficiency. Other factors include age-related decreases in kidney function, certain drugs and poor absorption of calcium due to gastrointestinal disease. A mild insufficiency of calcium over time can be a factor in osteoporosis, while faulty calcium metabolism during childhood may result in rickets.
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How can calcium deficiency be prevented and treated?
Calcium deficiency can be prevented and treated through diet and supplementation. Ensuring sufficient calcium intake, especially during childhood and adolescence, is critical for bone growth and preventing osteoporosis later in life.
To prevent calcium deficiency:
* Consume calcium-rich foods such as milk, cheese, yogurt, leafy green vegetables, and seafood.
* Maintain adequate vitamin D intake through sunlight or supplements, as it is essential for calcium absorption.
* Be aware that certain conditions and medications can affect calcium absorption and metabolism.Treatment for severe calcium deficiency (hypocalcemia) typically involves calcium supplementation to restore blood levels and alleviate symptoms like muscle spasms.
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calcium deficiency, condition in which calcium is insufficient or is not utilized properly. Calcium is the mineral that is most likely to be deficient in the average diet. It is the chief supportive element in bones and teeth. Calcium salts make up about 70 percent of bone by weight and give that substance its strength and rigidity. About 99 percent of the calcium in the human body is held in the bones and teeth. The remaining 1 percent circulates in the bloodstream, where it performs a variety of important functions. It helps to contract muscles and to regulate the contractions of the heart. It plays a role in the transmission of nerve impulses and in the clotting of blood. Calcium is involved in the stimulation of contractions of the uterus during childbirth and in the production of milk. It also regulates the secretion of various hormones and aids in the functioning of various enzymes within the body.
Ingested calcium is absorbed in the small intestine and passes from there into the bloodstream, most of it ultimately reaching the bones and teeth. The most efficient absorption of calcium is dependent on the presence in the body of vitamin D, which is a key ingredient in various hormones that enable calcium to pass from the digestive system into the blood, bones, and teeth. Similarly, there are optimal ratios of phosphorus to the amount of calcium consumed that permit calcium to be more completely utilized. Hormonal secretions of the parathyroid and thyroid glands (parathyroid hormone and calcitonin, respectively) also help maintain a calcium equilibrium in the blood. These regulatory mechanisms help to prevent a deficiency in calcium from developing in the bloodstream. When such a deficiency does develop, parathyroid hormone and vitamin D act to transfer calcium from the bones in order to maintain the mineral’s all-important presence in the bloodstream. The result of a mild insufficiency of calcium over the long term may be a factor in osteoporosis, a disease characterized by thinning of the bones. Faulty metabolism of calcium during childhood may result in rickets. Recent research points to calcium deficiency as being a possible cause of hypertension (high blood pressure) and of colorectal cancer.
Severe calcium deficiency, or hypocalcemia, which is defined as a reduction of calcium levels in the bloodstream below a certain normal range, has its own clinical manifestations. The main syndrome is tetany, which involves sensations of numbness and tingling around the mouth and fingertips and painful aches and spasms of the muscles. These symptoms respond to treatment with calcium. A clinically detectable deficiency of calcium is a relatively rare finding and is almost always caused by a deficiency of either parathyroid hormone or vitamin D in the body, i.e., the two chief regulators of calcium metabolism.
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Calcium is plentiful in nature. Food sources high in calcium include milk, cheese, yogurt, and other dairy products; leafy green vegetables such as broccoli, turnips, and collard greens; and seafood such as salmon and sardines.