Recommended Dietary Allowances (RDA) is the average daily nutrient intake level sufficient to meet the nutrient requirement of nearly all (97 to 98 percent) healthy individuals in a particular life stage and gender group.
 
The RDA is one of four dietary references of the new Dietary Reference Intakes (DRIs). DRIs are values that are quantitative estimates of nutrient intakes to be used for planning and assessing diets for healthy people.
The four types of DRI reference values are: 1. Estimated Average Requirement (EAR), 2. Recommended Dietary Allowance (RDA), 3. Adequate Intake (AI), and 4. Tolerable Upper Intake Level (UL).  

We have chosed to incorporate the RDA values throughout this site. These values are the most widely recognized measurements for determining the recommended levels of intake of various nutrients.

The RDA is a dietary guideline and does not address people who have specific individual needs. For example, smoking depletes vitamin C, stress, prescription drugs and individuals suffering from health conditions deplete various other nutrients that are not accounted for by following the RDA .

Since the RDA dietary guidelines are not enough for all individuals, additional measures are called for in the form of health supplements. Numerous accredited studies advocate the need for nutritional supplements as an effective "cheap health insurance" for a long and healthy life. This being said, many people are still not reaching the nutrient intake guidelines suggested by the RDA.

Food remains the ideal way to receive nutrients, and as such, we supply meal plans that are healthy, nutrient dense, and meet the RDA. For additional protection, we recommend following a supplement plan that best suits you.