phytonutrient

This term is primarily used in scientific, nutritional, and health-conscious contexts. It describes compounds that, while not required for basic survival like vitamins or minerals, offer significant protective or therapeutic advantages. It carries a positive, health-oriented connotation and is frequently found in medical journals, dietary guidelines, and wellness literature.

Because it refers to a specific class of chemical compounds, it is treated as a standard countable noun. It is often used in the plural to describe the diverse array of compounds found within a single food source, such as the various anthocyanins and carotenoids in a blueberry.