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I. Ways of expressing dietary recommendations

    

RDI

RDI (Reference Daily Intake) is a population-adjusted RDA based on all ages and sex groups of RDA values.

• It is numerically identical to the highest RDA value for any group.
• It was developed for food-labelling purposes.

(Note: RDA's differ among groups of people, such as men, women, children, the aged, different races, etc.)