It is important to remember that DRI recommended intakes are based on the latest accessible scientific research.
The DRI (Dietary Reference Intake) refers to a system of nutrition recommendations from the IOM (Institute of Medicine) of the National Academics, United States. It was presented in 1997 in order to widen the prevailing guidelines called as Recommended Dietary Allowances.
The values of DRI vary from those used in nutrition labeling on dietary and food supplement products in the Canada and United States that uses RDI and daily values that were based on out-of-date RDA from 1968 but were rationalized as of 2016.