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Anonymous users2024-02-06According to the data released by the Chinese Nutrition Society's "Dietary Nutrient Reference Intake for Chinese Residents", the daily calcium intake of infants should be about , and increase to every day after the age of age Adults are also the elderly The calcium needs of the elderly are increased, and the daily needs of pregnant and lactating women are higher, and the daily needs are higher
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Anonymous users2024-02-05How much calcium does the body need to supplement each day to reach the target? 800-1200 mg.
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Anonymous users2024-02-04Adults can use the calcium balance method, which is now more commonly used, to estimate their daily calcium requirements. Adults excrete about 175 mg of calcium in the urine every day, fecal endogenous calcium (most of which comes from unabsorbed calcium in food, and a small part of ** the fluid secreted by the digestive tract and the epithelial cells shed by the intestine) are about 125 mg, and sweat calcium is about 20 mg, so that the total amount of calcium lost in the body of adults per day is about 320 mg (which is also the daily calcium requirement of adults), so more than 320 mg of calcium must be absorbed from the intestine to make up for the calcium lost in the body. Based on the absorption rate of calcium from food in the intestines40, 800 mg of calcium should be consumed from the diet per day.
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Anonymous users2024-02-03400 mg day Infants 6-12 months: 600 mg Day After 1 year of age: 800 mg Day 11-20 years:
1200 mg day 24-50 years; 800 mg day Over 50 years old: 1200-1500 mg day Survey results of relevant institutions: The calcium intake of the general population has only reached 50% of the national recommended amount
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Anonymous users2024-02-02Calcium intake is recommended.
Age Calcium (
months
months
years old
years old
years old
years old
Year 1 99% of calcium is distributed in bones and teeth.
Before the age of 20 is the stage of bone growth, the time to grow taller. There are two peak growth periods in people: before 1 year of age (calcium deficiency in children will lead to stunting and stunting. e.g. late teething, late toddler, chicken breast) and 12 to 14 years of age (short stature, growing pains).
Bone mass continues to increase after the age of 20.
At the age of 35 to 40 years, bone density peaks.
After the age of 40, bone calcium is gradually lost (in the elderly, the loss of bone calcium will be accelerated, resulting in shortening, osteoporosis and bone hyperplasia).
2 1% of calcium is found in blood, intercellular fluid, and soft tissues. Maintaining the concentration of calcium in the blood plays an important role in maintaining the normal life activities of the human body. The body has a mechanism to maintain blood calcium concentrations.
There are two types of blood calcium: calcium absorbed through the digestive tract and calcium in bones (bones are the body's large storehouse of calcium, when calcium intake is insufficient, the warehouse is used for emergency) all of which are regulated by the secretion of calcitonin and calcitonin by the parathyroid glands.
3 Calcium deficiency can reduce the elasticity and toughness of soft tissues. **Lack of elasticity appears loose and senile; The lens of the eye lacks elasticity, and it is easy to be nearsighted and presbyopia; Blood vessels lack elasticity and are prone to hardening.
4 Reduces the excitability of nerve cells, so calcium is a natural sedative. Calcium deficiency can lead to nervous migraine (10%-20% in women), irritability, insomnia. It can cause night terrors, night crying, and night sweats in infants.
Calcium deficiency can also induce ADHD in children.
5. Strengthen the conduction function of the nervous system. For example, if your hand touches a glass of water, it is very hot and it is quickly put down, and there is a nervous system operation process in the middle: receptors (**) - transmitting nerves - central nervous system - efferent nerves - effectors (muscles).
How do feelings and impulses be transmitted to nerve cells, and how do nerve cells get out? There is a substance in this called a neurotransmitter. Calcium helps in the production and release of neurotransmitters.
6. Maintain the normal excitation of muscular nerves. For example, increased blood calcium can inhibit the excitability of muscles and nerves; When blood calcium falls below 70 mg l, neuromuscular excitability increases, convulsions appear. Irritable bowel syndrome, dysmenorrhea in girls, and calcium deficiency are important causes.
7. Reduces (regulates) the permeability of cells and capillaries. Calcium deficiency can easily lead to allergies, edema, etc.
8. Promotes the activity of a variety of enzymes in the body. In calcium deficiency, the secretion of glandular cells is weakened. Calcium is also an activator of enzymes.
9. Maintain acid-base balance.
10 Involved in the coagulation process of blood. The clotting of blood is a complex process in which one of the steps is: prothrombin – an active thrombin that requires calcium to activate.
What is missing will have cramps, etc.
I don't think this is a generation gap, maybe this is the difference between boys and girls in understanding love, girls are more in pursuit of simplicity, romance, and nature. Boys may have desires! If you have been dating for more than half a year, you will always mention opening a room, and say, "How can there be a very important use... >>>More
To a certain extent, it is possible, but it will not grow very tall, only 1 3cm at most, it is recommended to do more exercise, such as skipping rope and the like. Because the bone cheese basically stops developing when you become an adult, if you really want to grow taller, taking medication is the only way to go.
Rub a little slip and smoke slowly.
Happy birthday! Bless yourself! Another year older, should be a lot more mature, can't waste time gentle and not handsome, I wish myself to be happy forever and find happiness. Happy birthday to me! >>>More
I had the same experience at your age, but I was different from you in that I went to the army at the age of 18, and in the second year of the army, I began to think, what can I do after I leave the army, fortunately I was assigned to the infrastructure unit of the power system, and I didn't understand anything at the beginning, and the salary was not high, in fact, people who participated in the work at the age of 19-22 were so ambitious, with a relatively high vision, and were not satisfied with the status quo, this idea is true, but in order to change the status quo, it would be wrong, Any work is done from the grassroots level, don't complain about anything, just concentrate on doing your part, the opportunity is for those who are prepared, you are willing to do it sooner or later, the opportunity will fall on you, come on! I'm still working hard, and my annual income is about 5w, and at the earliest, 2w a year, I spent 3 years and almost 4 years. You just need to remember one thing, anyone is born a blank slate, they don't know anything, they can do it, you can do it, and finally send you a sentence to the army, you know - I will, you will - I am fine, you are fine - I am absolute.