Dietary Reference Intake

Dietary Reference Intake is a set of guidelines set up in 1997 to give more detailed guidance than the RDA system which preceded it. It was a collaboration between the USA and Canada.

It dropped the name RDA in favour of Dietary Reference Intakes (DRIs)

It added three new categories:

• Adequate intake (AI), where no RDA has been established
• Estimated safe and adequate daily dietary intake (ESADDI), expected to satisfy the needs of 50% of the people in that age group.
• Tolerable upper intake levels (UL), to caution against excessive intake of nutrients (like vitamin D) that can be harmful in large amounts.

External links

• US Government Food and Nutrition Information Center list of Dietary Reference Intakes (DRI) and Recommended Dietary Allowances (RDA)
• eLook Nutrition - Covers the nutritional value of common day food stuff, including DRI %