Iodine was discovered in France in 1811 by Bernard Courtois.Detection of a substance in the form of dark crystals of iodine was named (from the Greek. "Iodes" meaning "violet color").

as a chemical element it is a crystalline material is dark gray color, poorly soluble in water but readily in alcohol (because of this property was received well-known iodine 5%) and in solutions of own salt - potassium iodide ("Lugol's solution").

He considered not the most common chemical elements.It is noticed that the farther the area is away from the sea and it is above the level, the smaller the content of iodine in the air, land and water.

Iodine in humans



Its content is 20-50 mg, 8 mg of which is in the thyroid gland.It comes from food, water and air inhaled through the skin.

It is involved in the synthesis of thyroxine and triiodothyronine, necessary for normal functioning of the thyroid gland.When it works properly, its cells take iodine from the blood.It also ensures proper metabolism in the body.But as s
oon as her failures occur, the state of health is deteriorating.Iodine forms and phagocytes, is a kind of nurses that are "responsible" for the destruction of alien organisms.

Without it would not cost the metabolism in the subcutaneous fat layer, which provides a breakdown of fats and cellulite removal.A sufficient amount of iodine in the body promotes healthy skin, nails, hair, saves energy and gives strength.

Which foods contain iodine



Which foods contain iodine

to natural sources include water and some seafood: red and brown seaweed, cod, seaweed, halibut, clams, sardines, herring and shrimp.1 liter of drinking water can contain up to 15 micrograms of iodine.Another important source - iodized salt.

plant and animal sources: beets, salad, cereals, nuts, carrots, tomatoes, beans, cabbage, grapes, apples, persimmons (read than useful persimmon), apricots, plums, milk products.

daily dose



For adults and children over 11 years of age is 120-150 micrograms during pregnancy - 175 mcg, lactation - 200 micrograms.

Signs of deficiency:



  • weight gain
  • lethargy, weakness
  • slow mental processes
  • fatigue
  • memory decline
  • irritability and sensitivity to cold
  • dry skin, hair lossHair
  • women - menstrual cycle
  • swelling of the body, the face, extremities
  • thyroid enlargement
  • drastic backlog of physical and mental development
  • increased cholesterol
  • paralysis
  • deaf-mutism
  • congenital malformations, stillbirths children
  • impotence and infertility

Signs of overdose:



  • weakness, lethargy
  • headaches, depression
  • numbness
  • formation of goiter
  • rashesskin
  • develop hyperthyroidism
  • iodism
  • tachycardia
  • inflammation of mucous membranes in areas of iodine
Author: Marianna for TutKnow.ru | Photo Collage TutKnow.ru