A Nordic project--risk evaluation of essential trace elements: essential versus toxic levels of intake.

A risk evaluation of essential and toxic intake of trace elements has been performed by a group within the Nordic Collaboration on food questions. Six elements have been evaluated: selenium, iron, iodine, chromium, copper and magnesium and small safety margins between potentially deleterious and beneficial intakes were revealed. The risk evaluation, which will be published in early 1995, will be used as a background document in the revision of the Nordic Nutrition Recommendations.