Deficiency and excess of fluoride cause the teeth problems!
Fluoride helps strengthen tooth enamel, but its excess leed to enamel fluorosis. More!
Arsenic - the King of poison
Despite the reputation as a dangerous poison (as more than 1,000 years ago was considered the "king of poisons"), arsenic is the trace element with relatively low toxicity compared to other metals. More!
Selenium deficiency occurs in the some critical group of people.
Symptoms of selenium deficiency are present only in people who live in areas where there is little selenium in the soil. Some parts of Europe, U.S., New Zealand and China are places where there is small amount of selenium in the soil. More!
Role of chromium for human health
Chromium is able to lower LDL cholesterol level and to increase level of HDL cholesterol. More!
Is vitamin B15 useful or harmful for humans?
While some believe that this vitamin is »miracle« in a positive sense (especially in the former Soviet Union), others forbid it (in the U.S.). More!