What calcium is easily absorbed by the body! What are the ways in which calcium is broken down in th

Calcium is not broken down.

Calcium carbonate.

However, the conversion of calcium oxide to calcium carbonate requires the amount of nitrogen radiation with carbon.

1) Does calcium in the human body exist in the form of calcium carbonate in bones and teeth? Adults who are deficient develop osteoporosis. Calcium is mainly found in the blood in the form of ions, and if the jaw connection is too low, convulsions will occur.

Calcium is the source of life of the human body, and it is the most abundant inorganic element in the human body, with a total amount of more than 1 kg, and has the reputation of "life element" of the human body. Calcium 99 in the human body is deposited in bones and teeth, promoting their growth and development, maintaining their shape and hardness; l It is present in blood and soft tissue cells and plays a role in regulating physiological functions. The physiological role of calcium ions determines its importance to human life activities:

Calcium is inherently important for blood clotting. When calcium is deficient, blood clotting disorders occur, and the human body will have symptoms such as bleeding gums, subcutaneous bleeding spots, irregular uterine bleeding, menorrhagia, blood in the urine, and hematemesis. Calcium ions play an important role in the excitation of nerves and muscles and the conduction of nerve impulses.

When calcium deficiency occurs, the body experiences symptoms such as nerve blockade and dystonia. Calcium ions play an important role in cell adhesion and the maintenance of cell membrane function. The cell membrane is not only a barrier to the contents of the cell, but also a carrier for various essential nutrients and oxygen to enter the cell.

Normal levels of calcium ions ensure that the cell membrane smoothly "pumps" nutrients into the cell. Calcium ions have an activating effect on enzymatic reactions in the human body. As we all know, enzymes are the catalyst for the metabolic process of various substances in the human body, and it is an important life substance in the human body, and calcium deficiency will affect the normal physiological metabolic process.

Calcium ions play a decisive role in the secretion of human endocrine glandular hormones, and are essential for maintaining the functions of circulatory, respiratory, digestive, urinary, nervous, endocrine, reproductive and other system organs. In short, calcium is an indispensable trace element for the human body, it is not only the constructor of the body, but also the regulator of the body, and the source of life of our human body.

The normal bone metabolism process of the human body is a complex process of continuous remodeling activities of bone tissue, including bone resorption and bone formation. The sequence of the process is generally considered to be: activation of bone resorption and bone formation.

First, a large number of osteoclasts involved in bone resorption are activated, and the osteoclasts dissolve the matrix and remove calcium from the bone to form bone resorption. Subsequently, osteocytes are formed on the surface of bone resorption, and osteoblasts synthesize non-mineralized bone matrix while transporting calcium to the calcified zone; Finally, calcium and phosphorus crystals are gradually deposited in the bone matrix, and the bone matrix calcifications to form bone tissue. In the process of bone metabolism, a certain amount of bone tissue is absorbed every day, and a considerable amount of bone tissue is synthesized, and the two maintain a dynamic balance, when bone resorption is greater than bone formation, bone loss can occur, osteoporosis, osteomalacia, etc.; Osteosclerosis occurs when bone forms without corresponding bone resorption.

The metabolic process of bone is regulated by many factors in the body, such as calcium, phosphorus, magnesium, endocrine hormones and vitamins, all play a vital role. When these factors are abnormal, it can cause disorders of bone metabolism.

Milk contains about 120 mg of elemental calcium per 100 ml, and because milk also contains a variety of amino acids, lactic acid, minerals and vitamins can promote the digestion and absorption of calcium.

If you choose calcium to pay attention to the content of elemental calcium, different calcium salts contain different elemental calcium, dicalcium phosphate contains about 23% elemental calcium, calcium gluconate only contains 9% elemental calcium, calcium carbonate contains the most abundant elemental calcium content can reach 40%.

Therefore, if calcium supplements are used for calcium supplementation, calcium carbonate can be selected, and the other is to reduce the intake of alcohol and caffeine, which may affect calcium absorption.

The calcium in food that is more easily absorbed is eggs. Fish. The calcium in the general lamb and chicken is easy to be absorbed.

I think the calcium in milk and eggs is relatively easy to absorb, and the body's absorption of calcium is limited, so you can't eat too much because of the high calcium content, and you can also absorb calcium without occasional exposure to the sun.

1. The calcium in food mills is most easily absorbed by soy products, nuts, beans, fruits and vegetables, fish and condiments.

2. Hazelnut has the highest calcium content among all kinds of nuts in Biyouhe, and the calcium content of fried hazelnuts can be as high as 815 mg per 100 grams, which can meet the calcium needs of adults a day. However, nuts are generally high in energy, and only a small handful a day is enough.

3. Many green leafy vegetables are not inferior in calcium supplementation, and the calcium content of amaranth and rape exceeds that of the same weight of milk. At the same time, vegetables contain a lot of minerals and vitamin K that help with calcium absorption.

4. Under the same weight, the calcium content of loach is not only nearly 6 times that of carp, but also about 10 times that of hairtail. Loach Roasted Repentance Tofu combines loach and tofu into two calcium-rich ingredients, which is definitely a calcium-replenishing delicacy.

1. Foods rich in vitamin C, such as fresh vegetables and fruits, can promote calcium absorption and are beneficial to the formation of bone matrix. However, it should be noted that some vegetables (such as spinach, water spinach, etc.) contain more oxalic acid, which can combine with calcium to form insoluble calcium oxalate, which affects and prevents the body's absorption of calcium. Therefore, middle-aged and elderly people should boil them in water before eating them to remove oxalic acid in the vegetables.

2. High-calcium diet, which is a fundamental measure to prevent calcium deficiency, is also an economical and safe way to supplement calcium. Milk and soy products are good for calcium**. Foods high in calcium include shrimp skin, kelp, seaweed, oysters, seaweed, sesame paste, etc., and animal bone broth is also rich in calcium, but it is necessary to add some vinegar during the cooking process to promote the dissolution of calcium and facilitate the absorption of calcium.

3. Lemon can promote calcium absorption, and osteoporosis is caused by the continuous loss of calcium ions from the bones, resulting in the hollowness of bone tissue and the increase of bone fragility. According to the researchers, lemon promotes calcium absorption in the human body through the chelation of citric acid, that is, citric acid combines with calcium in the body to form chelated calcium, which reduces calcium loss and strengthens bones.

4. Seaweed is high in magnesium, and a balance between calcium and magnesium must be reached to ensure that both minerals can be used rationally. In addition, the calcium content of laver itself is also very high, and the calcium content in every 100 grams of laver is more than 400 mg, which is a good calcium supplement. Therefore, laver is rich in calcium and magnesium, and proper consumption can promote calcium absorption.

Extended Materials. Calcium plays an important role in maintaining the normal excitability of muscles and nerves, participating in the blood clotting process, and playing an important role in activating a variety of enzymes. Once calcium deficiency occurs, not only the growth of bones and teeth will be affected, but also the travel mind can easily lead to rickets in children and hypochondria in adults, and is harmful to the normal function of muscles, nerves, heart and brain tissue.

The main factors that affect calcium absorption are:

1. Factors of the body: including physiological requirements, nutritional status of vitamin D, calcium and phosphorus, gastric acid secretion, gastrointestinal mucosal contact area and physical activity.

3. Dietary acid residues and fatty acids in dietary fiber, in particular.

Ordinary inorganic salt calcium ions pass through the human gastrointestinal tract relatively quickly, and the absorption rate is not high.

However, through some methods, calcium ions are combined with certain organic compounds required by the human body, and calcium ions are absorbed together with organic compounds, which can greatly increase the absorption efficiency of calcium ions. This is called organic calcium.

Chelated calcium, which is the amino acid salt of calcium, can be called amino acid calcium. It is not a single substance, but a general term for a class of substances.

Amino acids (R-CHNH-COOH) are the main components of synthetic proteins, which are organic acids, and the human body has a very strong ability to absorb amino acids, and they are directly absorbed in a way that does not destroy amino acid molecules. Therefore, the amino acid calcium can absorb calcium ions together with amino acids, which greatly increases the absorption efficiency of calcium ions.

When I was a child, I needed to supplement calcium, and when doctors prescribed calcium tablets (inorganic calcium), they would also prescribe cod liver oil, which is mainly extracted from the livers of sharks, cod, etc., and is rich in amino acids needed by the human body. Intake of calcium tablets and cod liver oil at the same time can make inorganic calcium react with amino acids to form amino acid calcium, which is easier to be absorbed by the body.

a.Vitamin.

b.Vitamin.

c.Vitamin.

Correct Answer: a