What is potassium?
Potassium is an element of the main subgroup of the first group, the fourth period of the system of elements of DI Mendeleev, has 19 atomic number. Its designation is the symbol K. The appearance of potassium is similar to sodium - a soft alkaline metal of silver-white color. In nature, it is found only in compounds with other elements. Enters into many reactions, for example, in the reaction with water forms an alkali. Let us consider in more detail what potassium is and why it is needed.
In the human body in the cells of potassium is 40 times more than in the intercellular space. Potassium is associated with sodium, which helps them together to perform the following biological functions:
- Normalization of water and acid-base balance;
- Creating conditions for the occurrence of membrane potential, which determines the number of muscle contractions;
- Maintain good blood quality.
Potassium is found in the following foods:
- a fish;
- nuts and their butter;
- sunflower seeds;
The list can be continued for a long time, potassium is even contained in sea water.
Vitamin B6, which can be found, for example, in sunflower seeds, helps the absorption of potassium; interferes with the absorption of alcohol.
Potassium deficiency leads to convulsions, impaired cardiac and skeletal muscles, acute neuralgia - these are only the most common failures in the body with a lack of this element. A sufficient amount of potassium in the body is one of the important conditions for the work of the heart and nervous systems.