Nutritional Daily Values (RDA, RDI, AI, UL,...)
Nutrients are all substances that provide nourishment essential for the maintenance of life and for growth. We need different amounts of different nutrients in our body depend on sex group and age range or other special conditions. There are different daily intake values determined by government agencies in different countries, so let’s try to explain some of them for you.
DV or NDV - Nutritional Daily Values are the dietary reference values that are used for all nutrients. These values were determined by the FDA to best represent the minimum needs for the human population in general (for many nutrients levels are increased for special needs during pregnancy or lactation).
RDI - Reference Daily Intakes is the daily intake level of a nutrient that was considered in 1968 to be sufficient to meet the requirements of 97–98% of healthy individuals in every demographic in the United States.
RDA - Recommended Dietary Allowance is older than RDI recommendation of an average daily level of intake sufficient to meet the nutrient requirements of nearly all (97%–98%) healthy individuals.
DRV - Daily Reference Values are values of nutrients intakes recommended for the UK population. The DRVs can be divided into three types: RNI - Reference Nutrient Intake (95% of the UK population's requirement is met), EAR - Estimated Average Requirement (50% of the UK population's requirement is met based on a review of the scientific literature) and LRNI - Lower Recommended Nutritional Intake (5% of the UK population's requirement is met).
AI - Adequate Intake value has been established when evidence is insufficient to develop an RDA and is set at a level assumed to ensure nutritional adequacy.
UL - Tolerable Upper Intake Level represents a maximum daily intake unlikely to cause adverse health effects. Tolerable upper intake levels have been established to caution against excessive intake of nutrients (like vitamin A) that can be harmful in large amounts. This is the highest level of daily nutrient consumption that is considered to be safe for, and cause no side effects in, 97.5% of healthy individuals in each life-stage and sex group. UL values can be different from country to country, for example, UL for zinc is 40 mg and 25 mg in the United States and the European Union, respectively.
AMDR - Acceptable Macronutrient Distribution Ranges is presented as a range of intake specified as a percentage of total energy intakes. AMDR is used for specified sources of energy, such as fats and carbohydrates.
IDV - Individualized Daily Values are needed levels of nutrients evaluated for individuals. They are based on the fact that everybody individual needs may differ from the established Daily Values. IDV can probably be more popular in the future.
TDI - Tolerable Daily Intake - refers to the daily amount of a chemical that has been assessed safe for human being on a long-term basis (usually a whole lifetime).
MRL - Maximum Residue Limit is related to contaminants in foodstuff. It is regulated in EU limit for a presence of a particular contaminant in the food.
MDI - Maximum Daily Intake is a daily intake unlikely to cause adverse health effects.