Instruksjon til oppgaven Essential minerals are elements with recommended intake of >100 mg/day. Trace elements have recommended intake of <100 mg/day. Ultra trace elements are minerals with established, estimated or suspected daily requirement of <1mg. Choose from one to all of the alternativesThere is no good evidence that fluorine is essential, though it is classed as an ultra trace element. Selenium has higher toxicity than arsenicIron is a trace elementMany enzymes involved in protection against oxidative stress are dependent on trace elements.Fruits and vegetables are poor sources of essential minerals and trace elements, and vegetarians are likely to be deficient.Send svaretReset quiz