element name is translated from the Latin.«Calx» means "soft stone", "lime."He suggested the English chemist Humphry Davy, who in 1808 identified calcium electrolytic method.The simple substance is a mild alkaline earth metals silver.

action of calcium in the human body



proved that without this element man could not exist.It even can be compared with the root of a large tree or a solid foundation for the building.

Calcium is about 2% of body weight and is in the bones, hair, teeth and nails.Skeleton is a powerful protection of the internal organs.This support, thanks to which we are able to stand and walk.

So, here are the basic functions of calcium:


  1. Bones and teeth - bone without it becomes so fragile that can be destroyed, even at low loads, which is fraught with even the Spina Bifida (read what osteoporosis).Teeth also consist of 95% of Ca.Therefore, its lack of impact was quickly on the teeth: they quickly crumble, cracks, cavities and other. Symptoms.

  2. Muscle - affects the heart and th
    e heart muscle.

  3. nervous system - is required for the transmission of nerve impulses.

  4. cardiovascular system - regulates blood pressure by reacting with sodium, magnesium and potassium.

  5. Blood - supports normal blood clotting.

  6. cell membrane - is involved in the transport of nutrients across cell membranes.

  7. Other functions - strengthens the immune system, is involved in the synthesis of most of the hormones and enzymes involved in the formation of saliva, digestion, metabolism of fat and energy.

interaction



Helps absorbed: Vitamin D (calciferol).

slows down: vitamin B6 (pyridoxine).

«Enemies": manganese and zinc.Highly active blocking calcium absorption in the intestine of these elements and "outputs" from their tissues.

What foods contain calcium



What foods contain calcium

  • Dairy products: cottage cheese, yogurt, cheese, yogurt, fermented baked milk, sour cream.

  • Legumes, including beans, soy, beans, lentils, green peas.

  • cherries, strawberries, blackberries, gooseberries, apples, apricots, peaches, pineapples, currants, grapes, rose hips and oranges.

  • potatoes, bran, fruit and vegetable peels, celery, young leaves of dandelion, carrots, spinach, radishes, turnips, beets, cabbage, asparagus.

  • rye bread, oat groats, poppy, eggs, fish, sesame.

daily dose



faster occur in the human biochemical processes and higher physical activity, the more calcium it needs.On average, men and women, the daily dose is 450-800 mg.

for people leading an active lifestyle, it increases up to 1000-1200 mg.More

required and children (due to the rapid growth of the bones) - 1000-1200 mg.

highest need for pregnant women, especially in the second half of pregnancy - 1500-1800 mg.

deficit



reasons:
  • insufficiently digested in the gut (milk intolerance);
  • the body lacks vitamin D (when powered only plant foods);
  • women - reducing the amount of calcium before and during menstruation, causing painful uterine contractions.

Signs:
  • desire to eat chalk
  • brittle nails, hair
  • slowdown
  • heart palpitations
  • hypertension
  • tingling and numbness in the limbs, convulsions, tics
  • joint pain, sore gums
  • heavy menstruation

In children lack of evident violation of the skeleton, the occurrence of rickets.In adults, the bones become fragile due to bone demineralization, which dramatically increases the risk of osteoporosis.

excess



reasons:

cause of the excess can be simultaneous reception of high doses of Ca along with calciferol (vitamin D).Similar characteristics are observed with unilateral feeding of 4-6 liters milk per day for several years.If hypercalcemia occurs a deposition of Ca in the internal organs, muscles and blood vessels.

Signs:
  • nausea, vomiting
  • loss of appetite, weight loss
  • weakness, cramps
  • thirst, increased urination
Author: Marianna for TutKnow.ru | Photo Collage TutKnow.ru