Trace elements in human nutrition and health
The core of the report, which has three parts, provides authoritative recommendations on the nutritional significance, requirements for health, and safe range of daily intakes for nineteen trace elements in three categories. These include essential elements, such as iodine and zinc, probably essential elements, such as manganese and silicon, and potentially toxic elements, such as fluoride, lead, cadmium and mercury, which may also have some essential functions at low levels.
Chapters in the final part provide detailed guidelines for the design and interpretation of research on trace elements. A chapter on analytical methodology concentrates on the problems encountered in determining trace elements in biological samples and dietary materials. The next chapter uses data from dietary surveys in 27 countries to discuss methods for assessing dietary intakes and to highlight problems of data interpretation. The final chapter offers advice on how to determine whether the dietary habits of specific communities will increase the risk of disorders related to trace elements.