The recommended daily allowance (RDA) is defined as the average daily intake of a specific nutritient in order for the average healthy person to maintain their current state of health.These RDAs are set based on information available, blended with a healthy dose of political influence.
In the past few years we have seen substantial changes in recommendations for certain nutrients. Folic Acid intake is now considered to have a direct influence on neural tube defects like Spina Bifida and was added as a dietary supplement to the white flour in 1998.
Other research has suggested that our Vitamin D RDA is about one quarter of what it should be.
As is done from time to time, the FDA is looking at the RDAs to establish necessary changes.
You can get more information from the FDA’s web site.
FDA Issues an Advance Notice of Proposed Rule Making to Revise the Reference Values and Mandatory Nutrients
On November 2, 2007, the U.S. Food and Drug Administration (FDA) issued an advance notice of proposed rulemaking (ANPRM) in the Federal Register, Docket No. 2006N-0168, titled Food Labeling: Revision of Reference Values and Mandatory Nutrients. The ANPRM requests comment on what new reference values the agency should use to calculate the percent daily value (DV) in the Nutrition Facts and Supplement Facts labels and what factors the agency should consider in establishing such new reference values. In addition, FDA requests comments on whether it should require that certain nutrients be added or removed from the Nutrition Facts and Supplemental Facts labels.
On November 8, 1990, the Nutrition Labeling and Education Act (NLEA) of 1990 was signed into law amending the Federal Food, Drug, and Cosmetic Act (the
Act). In response to the NLEA, FDA, in 1993, issued several rules to modify how nutrition information is presented on food labels. When the agency issued
those rules to modify the nutrition label information, it considered the diet and health information that was current at that time. New information has
since become available on nutrient values that the agency believes may impact what nutrients it should consider requiring to be listed on the food label and
what nutrient values it should use as a basis for the DVs on the food label.
Interested persons can submit written or electronic comments by January 31, 2008 as per the instructions provided in Docket No. 2006N-0168