Selenium is a microelement found in only 10-15 mg in the human body, but its presence mediates a wide range of biological effects. Most selenium is found in soft tissues, especially in liver cells. It is absorbed into the body by food.
It is mainly found in seafood, whole grains, and offal, such as kidneys and liver. It is absorbed from the gastrointestinal tract with good efficiency, 50-70%. A protein-rich diet helps with absorption.
Foods rich in selenium are meat, fish, milk, eggs, and legumes – or foods rich in protein. Selenium and vitamin E mutually enhance the effects, while the effects of selenium inhibit sulfur, silver, and arsenic.
To date, the definition of daily selenium needs has not been refined, and the accepted RDA in the United States is 0.05-0.07 mg. Metabolic tolerance to selenium varies within narrow limits, i.e., the required amount and the toxic threshold are very close to each other.
The toxicity limit is 0.20 mg daily. Selenium poisoning is called selenosis, whose symptoms are: hair loss, skin changes, garlic-smelling breath, tooth damage, nervous system disorders.
The role of selenium in our body
The most important role of selenium is its antioxidant properties. It can reduce oxidative stress, thus contributing to preserving the protective membrane of cells by chemical protection of lipid substances.
Selenium mediates the antioxidant effect by participating in forming the enzymatic structure of glutathione peroxidase. The immune-boosting properties of selenium are linked to antioxidant protection, and many of the processes required to protect against pathogens are more intense in the presence of selenium.
It has been proven that amounts of selenium slightly higher than physiological needs help reduce the risk of developing cancer, while excessive selenium intake increases the same risk! Selenium has been shown to inhibit the development of many types of tumors and to be a protective agent for healthy cells. Glutathione-bound selenium cannot be accepted by tumor cells, which weakens their ability to fight oxidation (that is, it harms chemical stress).
Symptoms and consequences of selenium deficiency
However, selenium also has several other physiological effects that can be inferred from the symptoms of selenium deficiency listed below.
Selenium deficiency may also be a background for hematological disorders ( anemia, sickle cell anemia) or general fatigue. Selenium also plays a role in the function thyroid gland, so that selenium deficiency can occur in the form of hypothyroidism, and in many cases, it can only be fatigue.
According to some research, selenium deficiency increases the effect of the Coxsackie virus that causes the disease. In the end, selenium deficiency can lead to heart muscle disease, which is a complication of the mentioned viral infection.
Among neurological disorders, selenium deficiency can be confirmed in some diseases caused mainly by oxidative metabolic disorders (Alzheimer’s disease, Parkinson’s disease). However, it is important to emphasize that these are not direct effects, and the addition of selenium cannot cure these diseases. It can only reduce the symptoms of the disease.
Skin problems that indicate selenium deficiency include phenomena associated with increased pigmentation, e.g., more common moles, freckles on the liver.
Some data suggest that selenium deficiency in men leads to impaired sperm formation and maturation, and in women, it can lead to infertility. A small supply of selenium during pregnancy leads to low birth weight. In infants and early childhood, insufficient selenium supply has been reported to increase the risk of sudden infant death and infant and child mortality. Reduced selenium intake in children causes growth retardation.
Selenium deficiency can also cause muscle pain and muscle diseases, and various problems with the liver and pancreas.
The composition of one capsule
Selenium – 200mcg.
Method of use and dosage
As a dietary supplement, take one capsule once or twice a day with water.
Store in a cool and dry place, out of direct sunlight.
Do not take this product if you are taking prescription antidepressants or pregnant or breastfeeding. Consult your doctor before use.