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Generally, finger blood is fine, and the accuracy of hair is not high. However, 99% of the calcium in the human body is stored in bones and teeth, and the calcium in the blood is less than 1% of the total amount of the whole body. However, because the level of blood calcium concentration has a great impact on life, if the blood calcium concentration fluctuates greatly, our human body will not even be able to complete some simple behaviors such as reaching out and walking, so under normal circumstances, the human body will try to keep the blood calcium concentration constant.
When the calcium supplement in food is insufficient, or the lack of vitamin D causes calcium malabsorption and blood calcium begins to decline, the human body will quickly release the calcium stored in the bones into the blood, so that the blood calcium concentration rises, and the blood calcium concentration is kept constant. Therefore, unless there is a severe calcium deficiency, the blood calcium concentration does not decrease significantly. Therefore, in general, the blood calcium concentration does not sensitively reflect whether the human body is deficient in calcium, that is to say, people with normal blood calcium will also have the symptoms of calcium deficiency.
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It's generally okay to eat a bottle, but if you are deficient in calcium, there are many symptoms.
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You are very right, China has always been a high calcium deficiency population, mainly because China is a high-phosphorus country, too high phosphorus will definitely decompose the calcium in the body, you need to keep supplementing calcium, the key is to be able to choose good calcium.
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In everyday life, self-diagnosis can be made based on some symptoms.
1) Children. When a child has some of the following symptoms, it should be diagnosed as calcium deficiency: it is not easy to fall asleep, it is not easy to enter a deep sleep state, it is easy to cry after falling asleep, it is easy to wake up, and it sweats a lot after falling asleep; paroxysmal abdominal pain, diarrhea, cramps, sternal pain, "X'" shaped legs, "O" shaped legs, chicken breasts, gray or white marks on nails; anorexia, picky eating; daytime irritability, restlessness; delayed mental development and late speech; Late toddler, who starts walking after 13 months; Late teething, teething after 10 months, sparse, irregular, and not tightly arranged, with black-pointed or jagged teeth; thinning hair; Poor health, easy to catch colds, etc.
2) Teenagers.
Adolescents with calcium deficiency will feel obvious growth pains, weak legs, cramps, and poor performance in physical education classes; Fatigue, irritability, lack of concentration, and fatigue easily; picky eating, anorexia; tooth decay, tooth dysplasia; Prone to allergies, colds, etc.
3) Young adults.
Under normal circumstances, young adults have heavy life pressure, and the tense pace of life often makes them neglect some physical discomfort, coupled with calcium deficiency and no typical symptoms at this age, so it is easy to cover up the condition. When there are symptoms such as frequent fatigue, fatigue, cramps, backache, allergies, and colds, calcium deficiency should be suspected.
4) Pregnant and lactating women.
Calcium deficiency is more common among women in extraordinary times. However, with the popularization of eugenics knowledge, people are more familiar with the symptoms of calcium deficiency at this stage. When they feel their teeth loosen; weakness, frequent cramps, numbness of the limbs; backache, joint pain, rheumatic pain; Calcium deficiency should be diagnosed when dizziness is accompanied by anemia, antenatal hypertension, edema, and inadequate milk production.
5) Elderly.
After adulthood, the human body slowly enters a period of negative calcium equilibrium, that is, the absorption of calcium decreases and the excretion increases. Most of the elderly are deficient in calcium due to the loss of calcium. Their self-diagnosed symptoms include senile itching; heel pain, lumbar and cervical spine pain; loosening, loss of teeth; marked hunchback, decreased height; loss of appetite, peptic ulcers, constipation; Dreaminess, insomnia, irritability, irritability, etc.
Of course, the most reliable way to check for calcium deficiency is to go to the hospital and ask a specialist to check the diagnosis, and then take the medicine under the guidance of the doctor**.
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