Buy sildenafil Australia and USA

The optimal daily dose for the normal course of biochemical and physicalbiological processes is 55 mcg for adults (as recommended by WHO). The US Food and Nutrition Council notes that the amount of selenium consumed should vary with age and be 40-70 micrograms for men, 45-55 micrograms for women, and 25 micrograms for children. It is noted that the total amount of this mineral in the human body varies from 3 to 20 mg, with about 47% of the total amount found in skeletal muscles, while the kidneys account for only 4%.

The content of selenium in serum gradually decreases in persons over 60 years of age. At serum concentrations below 85 mcg / l, a deficiency is observed, which is associated with an increased risk of prostate cancer by 4-5 times. Plants accumulate selenium in the form of inorganic compounds (in particular selenates), which are then converted into organic compounds (selenocysteine, which predominates in animal food, and selenomethionine). Selenium is absorbed most easily in organic form, as well as in the presence of vitamins A, D, E and low molecular weight proteins containing methionine.

The following foods are rich in selenium. Cereals - the content of selenium in them, it is worth noting, largely depends on the concentration of this mineral in the soil (and most European countries are just the same in risk areas). Milk - modified baby milk contains four times less selenium than breast milk (3.5 mcg enters the child's body daily compared to buy viagra online of this element in mother's milk). Fish - while it is noted that marine species caught in the northwestern part of the Atlantic Ocean contain more selenium (168-825 ng/g) compared to freshwater species (146-576 ng/g).

Eggs - depending on the diet of chickens. Selenium in the yolk is associated with phosphoavidin. Small amounts of inorganic selenium (selenite and sodium selenate - the bioavailability of the latter, by the way, is excellent, and it is directly used for the synthesis of certain selenoproteins) have been found in drinking water. The low content of protein in foods is associated with a low concentration of selenium in them.

Order cheap sildenafil online

Cereals cover about 50% of the daily intake of selenium, while meat, poultry and fish - about 35%. Fresh and uncooked vegetables provide 11% of this viagra pills in a proper, balanced diet, fruits less than 10%. Heavy metals and sulfur reduce the bioavailability of this element, as does heat treatment (due to the formation of volatile compounds). The use of supplements containing organic selenium of yeast origin, in case of its deficiency, has multidirectional beneficial effects on the health and functioning of the human body (in particular, on the functioning of the thyroid gland and the cardiovascular system). It is also considered the safest form.

It is recommended to add fermented foods to the diet, which contain lactic acid bacteria, as well as yeast, which accumulate a significant amount of selenium. Another example is sourdough baking using microbial cultures enriched with selenium. With the syndrome of malabsorption, radiation and chemotherapy, metabolic disorders, the risks of its deficiency are especially increased.

Interesting fact . Recently, not only nutrihacking experts, but also manufacturing enterprises and large farms have begun to pay attention to this microelement. It has been noted that selenium is necessary for the normal reproductive function of chickens, for the formation of sildenafil pills (in particular, the optimal ratio of protein and yolks, as well as for shell hardness), as well as for protecting the body from free radicals. Studies note that the addition of selenium to animal feed effectively protects against high blood pressure with regular exposure to heavy metals. In particular, necrotic damage to the kidneys under the influence of mercury decreased with increased selenium intake.