What does the Recommended Daily Allowance (RDA) mean?
A. RDAs are also referred to as reference nutrient intakes (RNI), recommended dietary intake (RDI), and daily values (DV). The RDAs are set to prevent overt nutrient deficiencies, such as Scurvy and Beri Beri. Many of the health benefits from nutrients are present at levels much higher than the RDAs. On the other hand, levels lower than the RDA may be healthier in some cases. The Pharmanex products are based on current scientific research. The levels of our nutrients are set at the levels that maintain optimal health. The RDAs provide sufficient levels of a nutrient to take care of normal bodily processes, such as metabolism, nerve transmission, fluid balance, etc. Once these essential functions are taken care of, many nutrients may be needed in excess of the RDA. Specific instances where higher than RDA intakes are needed are during exercise, periods of stress or injury, and to provide antioxidant benefits. Specific examples are vitamin E, vitamin C, and iron. The RDA of vitamin C pre
