Around 40 nutrients are considered in detail in this report from the Committee on Medical Aspects of Food Policy (COMA). Sources include much published information contributions from independent experts & the reports of four expert Working Groups. The committee has introduced values other than RDIs (Recommended Daily Intakes) & RNIs (Reference Nutrient Intakes) as the members concluded that for most of the population the RNI or RDA values represent substantially more than is required for health. The extra values used in this report will provide more detailed guidance & will be particularly useful in the interpretation of dietary surveys.