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How Vitamin D Controls Calcium
Calcium is known as the bone-building nutrient. But some experts pointed that we should pay more attention to exercise and vitamin D.
Blood calcium levels must be maintained within a narrow range for normal nervous system functioning and maintenance of bone density. Blood calcium levels are especially vital in childhood during bone growth.
There are relationship also between calcium, vitamin D and osteoporosis.
Vitamin D as calcitriol is an essential for regulation of blood calcium and phosphorus levels. Bone health and regulation is also assisted by vitamin A, vitamin C, vitamin K, the hormone calcitonin, parathyroid hormone, and magnesium.
Calcium levels are sensed by the parathyroid glands.
If blood levels of calcium fall too low, the parathyroid glands secrete parathyroid hormone. The parathyroid hormone stimulates production of an enzyme in the kidneys. This enzyme increases the transformation of calcidiol to calcitriol. Calcitriol is a potent hormone that increases blood calcium levels.
Increased blood levels of calcitriol cause increased absorption of calcium from food in the intestines. The kidneys also reduce losses of calcium in the urine in response to increased levels of calcitriol.
It’s very important to keep optimum levels of calcium in the blood and for that matter a healthy and balanced diet is required.
In many cases, calcium can be mobilized from bones if dietary levels of calcium are insufficient. Increased release of calcium from the bones requires parathyroid hormone in addition to calcitriol.
Calcium and vitamin D are present in many liquid calcium supplements.. These two nutrients work together to help in the prevention of many diseases.
Most of the degenerative diseases are caused due to calcium deficiency but of course calcium deficiency is ultimately linked with deficiency of vitamin D.
CAlcium deficiency can occur with poor diet, abnormal parathyroid function (gland that regulates blood calcium levels), kidney failure, and vitamin D or magnesium deficiency.
Symptoms of deficiency include bone loss and weakening, muscle cramps, heart palpitations, tooth decay, back and leg pain, insomnia, nervous isorders, and rickets (bone deformities in children).
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FACTS ON CALCIUM AND VITAMIN D:
- Eighty percent of American women are deficient in calcium.
- Most of the calcium in the body, about 99 percent, is found in the bones andteeth. Only one percent is found in the blood and soft tissue.
- You need calcium along with Vitamin D to build strong bones and keep them that way throughout your life.
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