Which term refers to the minimum daily intake levels of essential nutrients?

The term that refers to the minimum daily intake levels of essential nutrients is "Recommended Dietary Allowance" (RDA). The RDA is a key nutritional guideline that indicates the daily intake level of essential nutrients that meets the needs of most healthy individuals in a particular life stage and gender group.

It is established based on scientific evidence and research to ensure that people get enough nutrients to maintain good health and prevent deficiencies. The RDA serves as a goal for daily intake for individuals.

While the "Adequate Intake" is established when there's not enough evidence to create an RDA, and the "Estimated Average Requirement" represents the average daily intake level for half the healthy individuals in a particular group, the RDA specifically targets the minimum intake necessary for most people to thrive. The "Upper Level Intake" defines the maximum daily intake unlikely to cause adverse health effects, which is quite different in purpose from setting minimum intake levels.