There are several terms commonly associated with Nutrition you may not be familiar with:

BMR:

Your Basal Metabolic Rate (BMR) is the rate at which your body burns calories simply to maintain bodily functions such as breathing, digesting foods, and beating your heart. For most people, about 60% of their calories go towards keeping their body running.

RDA:

The National Research Council's Recommended Dietary Allowances (RDA) is the standard for the daily nutritional needs of healthy people. Broken down by gender and age, it covers 25 vitamins, minerals, and trace elements that are critical for a healthy diet. RDA's are neither the absolute minimum, maximum, or ideal amount of a nutrient you should consume; they merely provide an amount that you can be sure is safe and will promote proper health and development. The RDA tables used on this site are from the 10th Edition, published in 1989. To see your RDA's, visit the Nutritional Profile Generator!

U.S. RDA

The FDA established the U.S. Recommended Daily Allowance (USRDA) in 1973 as a simplified daily nutritional requirement standard for food labeling. Because of confusion between the terms USRDA and RDA, the term USRDA has been renamed RDI.

RDI

The FDA established the Reference Daily Intake (RDI) to replace the term USRDA (see above) due to confusion between the terms USRDA and RDA. The RDA also adds six new nutrients, Vitamin K, Selenium, Chloride, Manganese, Chromium, and Molybdenum.

DRV

The Daily Recommended Values (DRV) are established for special components of foods not listed by the RDI's, such as Fat, Cholestrol, Carbohydrates, and Protein. Unlike other daily nutritional requirements, the DRV's are derived from how many calories a day you need. To see your DRV's, visit the Nutritional Profile Generator!