DRI - DIetary Reference Intake, estimate the energy and nutrient needs of healthy people may change based on gender, age, health conditions, pregnant etc. EAR - Estimated Average Requirement, used to set RDA RDA - Recommended Dietary Allowance, average daily intake that meets the needs of the 97-98% of healthy individuals of a specific age or gender AI - Adequate Intake, used when RDA cannot be calculated, AI exceeds EAR and possible RDA UL - tolerable Upper intake Level, max amount of nutrient that is unlikely to pose any risk of adverse health effects, not intended level of intake CDRR - Chronic Disease Risk Reduction, max daily intake unlikely to pos adverse effects on healthy people