There are several terms commonly associated with nutrition that can be helpful to be familiar with. They are as follows.
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-percent of their calories go towards keeping their body running.
RDA: . The National Research Council's Recommended Dietary Allowances (RDA) is the single most valuable reference 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. Its values are what the military, the country's prison system, and numberous relief agencies use to provide nutritious meals.
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:
DRV. The Daily Recommended Values (DRV) are established for special components of foods not listed by the RDI's, such as:
Unlike other daily nutritional requirements, the DRV's are derived from how many calories a day you need.
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