selenium, selenoproteins, ADHD, depression, COVID-19, oxidative stress

In the pharmaceutical industry, more and more nutritional supplements are entering the market, the composition of which contains the trace element selenium, which has scientifically proven benefits for the human body.It is important for the proper implementation of human processes as well as for the maintenance of human systems. It has been proven that with an insufficient intake of selenium, the development of chronic degenerative diseases is possible. The trace element is known for its protection against oxidative stress in the human body, thanks to selenoproteins that break down hydrogen peroxide.Over 5.9% of the world's population suffers from Attention Deficit Hyperactivity Disorder (ADHD), which is characterized by inattention, impulsivity, and hyperactivity. Millions of people suffer from depression or have experienced it at some point in their lives. It is a mood disorder characterized by feelings of inadequacy, despondency, decreased activity, pessimism, and sadness.The COVID-19 pandemic has affected millions of people worldwide and resulted in hundreds of thousands of deaths. Currently, much research is focused on supportive nutritional therapies that can mitigate the susceptibility as well as the long-term complications of COVID-19. Selenium plays a key role in strengthening immunity, preventing viral infections, and supporting therapy in critical illnesses. In addition, its deficiency can affect the severity of the disease.The conditions listed above can be influenced by selenium, thanks to selenoproteins and their influence on oxidative stress