The Reference Daily Intake or Recommended Daily Intake (RDI) is the daily intake level of a nutrient that is considered to be sufficient to meet the requirements of 97–98% of healthy individuals in every demographic in the United States (where it was developed, but has since been used in other places).
The RDI is used to determine the Daily Value (DV) of foods, which is printed on nutrition facts labels in the United States and Canada, which is regulated by the Food and Drug Administration (FDA), and Health Canada.
The RDI is based on the older Recommended Dietary Allowance (RDA) from 1968; newer RDAs have since been introduced in the Dietary Reference Intake system, but the RDI is still used for nutrition labeling.
Read more about Reference Daily Intake: Food Labeling Reference Tables, History, Disputed Value
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