Bone guardian new&; Quot Calcium & Read, how much do you know about calcium in bones?

What do you know about calcium in bones?

It is very important to supplement calcium and grow taller. Don't let the children lose at the starting line.

With the improvement of living standards

Exactly. People will pay attention to their health.

I always want to make up for myself.

Under the upsurge of calcium supplementation for the whole people

It seems that everyone is short of calcium and needs calcium supplement.

Actually, no matter what age.

You need to take a certain amount of calcium.

Calcium knowledge:

Calcium is one of the most abundant inorganic elements in human body, accounting for about 1.5-2% of human body weight, of which 99% exists in bones and teeth, and 1% exists in cells, soft tissues and extracellular fluid. This shows its importance to bone health. In fact, in addition to the role of calcium, it is not limited to bone health, but also involves the body's coagulation function, skeletal muscle and myocardial function, nerve impulse maintenance, enzyme activation and other physiological functions, but the content in bones is high, and insufficient intake will lead to rickets or osteoporosis.

The necessity of calcium supplementation:

1, 1% calcium is distributed in blood, interstitial fluid and soft tissue. Maintaining the concentration of blood calcium plays an important role in maintaining normal life activities of human body, and there are usually two sources of blood calcium: calcium absorbed through digestive tract and calcium in bones.

2. Calcium deficiency will reduce the elasticity and toughness of soft tissue. The skin lacks elasticity and looks slack and aging; The lens of the eye lacks elasticity and is prone to myopia and presbyopia; Blood vessels are inelastic and easy to harden.

3, reduce the excitability of nerve cells, so calcium is a natural sedative. Calcium deficiency can lead to nervous migraine, irritability, insomnia, night terrors, night crying, night sweats, and also induce ADHD in children.

The necessity of calcium supplementation:

Can promote the formation of bones, promote growth and development, because calcium is the main component of bones, and calcium supplementation can make growth and development normal; Calcium supplementation can increase the elasticity and toughness of ligaments, protect the body from injury, and reduce the possibility of cervical spondylosis and lumbar disc herniation; Calcium supplementation can play a calming role, especially for insomnia patients. Calcium supplementation can make people more energetic, because calcium can maintain the excitement of muscles and nerves; Calcium supplementation can maintain the normal acid-base balance and electrolyte balance of human body, which has many benefits to human body.

Harm of calcium deficiency:

children

Hyperhidrosis, fright, fatigue, restless sleep, night terrors, night crying, weakness, frequent colds, loss of appetite, short stature, hand and foot convulsions, constipation, fidgeting, forehead protrusion, chicken breast and lower limbs deformity, O-shaped or X-shaped legs, rickets, polio, skeletal dysplasia, irregular teeth, slow growth and development, etc.

adult

There may be neuromuscular manifestations, such as increased neuromuscular excitability, muscle spasm, numbness of limbs, etc. If mild patients have no obvious manifestations, this time is called recessive hypocalcemia. We can induce typical convulsions through some tests, such as facial nerve percussion experiment.

Severe hypocalcemia may also lead to spasm of throat and wrist and foot, and sometimes even induce seizures and even apnea. There will also be mental symptoms, such as irritability, depression, cognitive decline and so on.

Cardiovascular aspect, the main manifestation is arrhythmia, and the main type is conduction block. There are also bones, muscles and soft tissues, which can also be manifested as bone pain, pathological fractures and osteoporosis. There is a more serious situation. When the blood calcium is lower than 0.88mol/L, severe spasm of voluntary and smooth muscles may occur, leading to hypocalcemia crisis.

The relationship between bone and calcium:

There is a lot of calcium in bones, which is composed of bone cells and extracellular matrix, in which the matrix is composed of organic matter and inorganic matter (bone salt), in which bone salt is a hydroxyapatite macromolecular structure with calcium as the main component, which makes bones have the function of scaffold, most of which is stable calcium, and 1% is soluble calcium, which is called the permanent calcium source of human body.

The absorption of calcium depends on the secretion system of vitamin D, which is called active transport. Vitamin D-dependent calcium binding protein (CaBp-D) has a high affinity for calcium. One CaBp-D can bind four calcium ions, so it has saturation effect due to limited receptors. If a large amount of calcium is ingested at one time, but not enough CaBp-D is absorbed, it will be excreted from the intestine, so the more calcium you eat, the better. There is another absorption method, which has no saturation effect, but the absorption capacity is very small, that is, passive diffusion (diffusion by using concentration difference).

References:

1. Du Ming, Mu,, et al. Calcium supplementation and bone health and osteoblast milk protein [J]. Food Industry Science and Technology, 2008,000 (001): 271-274.

2. Working Group on Calcium and Vitamin D Nutrition and Osteoporosis of Osteoporosis and Osteoporosis Branch of Chinese Medical Association. Necessity of calcium supplementation and vitamin D for bone health [J]. China Journal of Endocrinology and Metabolism, 20 18(3):202-206.

3. Yan Saifeng is from Fang Lin. Rational use of calcium in children [J]. Modern medicine and health, 2012 (15):125-126.

4. Xiaohui If you want good bones, you should take calcium supplements as early as possible [J]. Family doctor, 2009,000 (004):17-18.

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