Average Requirement (EAR), Recommended Nutrient Intake (RNI), Appropriate Intake (AI) and Tolerable Maximum Intake (UL).
Average Requirement (EAR): The EAR is based on information from studies of individual requirements, and is the level of intake that is judged to satisfy the requirements of 50% of individuals in a given group of gender, age, and physiological condition based on certain indicators.
Recommended Nutritional Intake (RNI): The RNI is equivalent to the traditional RDA, and is the level of intake that meets the needs of the vast majority (97%-98%) of individuals of a particular gender, age, and physiological condition.
Appropriate Intake (AI): AI is the observed or experimentally obtained intake of a nutrient for a healthy population.
Tolerable maximum intake (UL): UL is the maximum average daily intake of a nutrient. This amount does not appear to cause adverse health effects in almost all individuals in the general population.
Expanded InformationChina RDA and DRI:
As early as 1938, the Chinese Medical Association, the Public **** Health Committee of the Committee on Nutrition of the special organization formulated the "Minimum Nutrient Requirements of the Chinese People", put forward the adult need for 1.5g of protein per kilogram of body weight, and pay attention to calcium, phosphorus, iron, Iodine and vitamin A, B vitamins, vitamin C, vitamin D, appropriate intake.
In 1952, the Department of Nutrition of the Central Health Research Institute published the Food Composition Table, an appendix to the "Nutrient Requirement Table (Daily Dietary Nutrient Supply Standard)," which included the requirements for calcium, iron and five kinds of vitamins.
The Chinese Academy of Nutrition set up an "Expert Committee on the Formulation of DRIs for Chinese Residents" and a secretarial group. The DRIs for Chinese residents were formulated and officially announced in 2000.
Baidu Encyclopedia - Dietary Nutrient Reference Intake
Baidu Encyclopedia - Dietary Nutrient Intake for Chinese Residents