Selenium : the lack and excess consumption rates
Vitamins And Dietary Supplements / / August 12, 2017
Selenium is an essential trace mineral.This means that the human body should get this mineral in the food a person eats.Small amounts of selenium are good for health.
Selenium is needed the body, but only in small quantities.Selenium helps the body in the following:
- the creation of special proteins called "antioxidant enzymes" which play a role in preventing cell damage;
- help the body in its protection after vaccination.
Some preliminary findings of a number of medical studies suggest that selenium may help with the following conditions:
- to prevent certain types of cancer;
- for the prevention of cardiovascular disease;
- to protect the body from the toxic effects of heavy metals and other harmful substances.
Food sources of selenium
Plant foods - such as vegetables - the most common dietary sources of selenium.What selenium in vegetables we eat, it depends on how much of this mineral were in the soil where plants grow.
Fish, shellfish, red meat, grains, eggs, chicken, liver and garl
Brewer's yeast, wheat germ, and enriched bread - are also good sources of selenium.
daily requirement for selenium
best way to get the daily requirement of essential vitamins - a balanced diet that includes a variety of foods.
How many units of each vitamin a person needs depends on age and gender.Other factors - such as pregnancy and disease - are also important.Women pregnant or breast-feeding need more vitamins.The doctor will develop a plan supplements with vitamins on the basis of the specific needs of the patient.
daily rate of selenium for infants
- 0-6 months: 0.3 milligrams per day (mg / day)
- 7-12 months: 0.4 mg / day
selenium daily norm for children and students
- 1-3 years: 0.5 mg / day
- 4-8 years: 0.6 mg / day
- 9-13 years: 0.9 mg / day
selenium daily norm for adolescents andadults
- Men aged 14 years and over: 1.3 mg / day
- Women aged 14 to 18 years: 1.0 mg / day
- Women aged 19 years and over: 1,1 mg / day.
excess and lack of selenium in the body
Selenium deficiency is rare in humans.Nevertheless, it can occur.
In combination with the virus Coxsackie selenium deficiency leads to Keshan disease, which can be fatal due to disease of the heart muscle.Keshan disease caused many child deaths in China has not yet been discovered by the lack of selenium and the children were not given selenium supplements.
other two diseases are associated with selenium deficiency:
- Kashin-Beck disease, which leads to bone disease;
- endemic cretinism (endemic myxedema), which leads to mental retardation.
Severe gastrointestinal disorders may also affect the body's ability to absorb selenium.Such disorders include Crohn's disease.
excess selenium in the blood can cause a condition called "selenium poisoning."Selenium can cause hair loss, nail problems, nausea, irritability, fatigue and slight damage to the nervous system.However, toxic selenium is rare.