Vitamins, minerals and nutrition RDAs
Recommended Dietary Allowances (RDAs) that have been published since 1941
by the National Academy of Sciences are outdated and have been revised.
National Label Act of 1990 required labeling of these RDAs that were
published in 1969. New data have
been published and are called the Dietary Reference Intakes (DRIs).
These are nutrient-based
reference values for use in planning and assessing diets.
You will not see these values on labels since the manufacturer is not
required to put them on the labels until a new law is passed.
The DRIs reflect a shift in emphasis from preventing deficiency to
decreasing the risk of chronic disease through nutrition. The RDAs were based
on the amounts needed to protect against deficiency diseases. Where adequate
scientific data exist, the DRIs will include levels that can help prevent
cardiovascular disease, osteoporosis, certain cancers, and other diseases that
are diet-related. Instead of a single category, the DRIs will encompass at
least four: (Sorry about the
1. Estimated Average
Requirement (EAR): The intake that meets the estimated nutrient need of
50% the individuals in a specific group.
2. Recommended Dietary
Allowance (RDA): The intake that meets the nutrient need of almost all (97
to 98%) of the healthy individuals in a specific age and gender group. The RDA
should be used in guiding individuals to achieve adequate nutrient intake
aimed at decreasing the risk of chronic disease. It is based on estimating an
average requirement plus an increase to account for the variation within a
particular group. If sufficient
data are not available, the RDA is set at 1.2 x EAR.
3. Adequate Intake (AI): When
sufficient scientific evidence is not available to estimate an average
requirement, Adequate Intakes (AIs) will be set. These are derived though
experimental or observational data that show a mean intake which appears to
sustain a desired indicator of health, such as calcium retention in bone. The
DRI committee set AIs for calcium, vitamin D, and fluoride.
4. Tolerable Upper Intake
Level (UL): The maximum intake by an individual that is unlikely to pose
risks of adverse health effects in almost all healthy individuals in a
specified group. The UL is not intended to be a recommended level of intake,
and there is no established benefit for individuals to consume nutrients at
levels above the RDA or AI. The term "tolerable upper intake level"
was chosen to avoid implying a possible beneficial effect. For most nutrients,
it refers to total intake from food, fortified food, and supplements.
It is not advised to take more than this level of nutrient.
I recommend liquid Polyvisol with Iron for strictly
breast fed infants... starting the first month of life. Then I
recommend chewable vitamins for 1 yr olds through adults (and pills for 10yr
and older who can swallow pills) that contain iron and zinc . The only
place we get iron and zinc is from red meat. We tend to eat less of
that and the 1-4 yr olds don't like meat. liquid vitamins do not have
the zinc and gummy vitamins do not have iron plus too much sugar. Most
kids use Flintstone but it does not matter what brand as long as there is
iron and zinc.