Why do many multivitamin supplements contain more than the RDI or Canadian Recommended Nutrient Intake (RNI)?
The RDI’s and RNI’s apply to healthy individuals in specific age groups or periods of the lifecycle. They are based on certain assumptions so they can be applied to a large population. Many supplements, on the other hand, are formulated to meet the increased needs of people in “risk groups”. These groups require a greater-than-average level of vitamins.
