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Recommended daily intake (RDI) is the amount of nutrients a person should consume daily. RDIs are calculated for macronutrients, micronutrients, and calories. Percent daily values on nutrition labels help consumers assess nutrient density. RDIs are recommendations, not absolute answers.
The recommended daily intake suggests the amount of a given nutrient that a person should consume in a day. There are recommended figures for daily intake of macro and micronutrients, as well as the total number of calories a person should consume. The numbers are calculated to meet the needs of the majority of the population, and are used to determine the percentage of daily values that appear on nutrition labels of packaged foods.
Slightly different wording is sometimes used for the recommended daily intake. The Reference Daily Intake and Recommended Daily Value refer to the same calculations as the Recommended Daily Intake. All of these terms refer to a number that is calculated specifically for each nutrient and represents the amount of that nutrient an average body needs per day to function at its best. The recommended daily intake is a reference point that helps people know if they are consuming too much or too little of a nutrient each day.
There are recommended daily intakes for macronutrients, such as carbohydrates, fiber, fat, and protein, as well as micronutrients, which are vitamins and minerals. When it comes to caloric intake, the key values are the recommended daily intakes for macronutrients, as these are the nutrients that provide energy or calories. Most people, except perhaps those with a disease or deficiency of some kind, find that eating a generally healthy and diverse diet will provide them with all the micronutrients they need without careful monitoring of recommended daily intake values.
Perhaps the most important adaptations of the Recommended Daily Intake figures are the Percent Daily Values (%DV). Percent Daily Values are found on nutrition labels and help consumers assess how many nutrients a food contributes to the total amount of nutrients that should be consumed in a day. Each of these values is based on an assumed daily intake of 2,000 calories, which could be more or less than an individual consumes in a day. Although there are variations on these values, the Percent Daily Value gives a general idea of how nutrient-dense a food is. For example, if a food has a percentage daily value of 75% for vitamin C, then it can be assumed that the food contributes substantially to your personal recommended daily intake of vitamin C.
When it comes to the recommended daily intake, there is no absolute answer for everyone. Understanding the numbers will help determine if your diet meets your body’s nutritional needs. It is not necessary for one to strive to meet exactly the recommended daily intake for each nutrient; It is much more useful to use these figures exactly as they are described, as recommendations.
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