Nutrient

Chromium

Established research area

A trace mineral involved in helping insulin handle carbohydrates, fats, and protein. Found in broccoli, whole grains, and meats.

Commonly noted

Commonly noted: Chromium is a trace mineral that the body uses in small amounts to help insulin work in handling carbohydrates, fats, and protein; broccoli, whole grains, meats, and some fruits are common sources.
Low intake: A chromium shortfall is rare, and the exact amount the body requires is still being studied.
Higher intake: Chromium from food has not been shown to cause harm, and no upper intake level has been set; the effects of very high supplemental amounts are still being studied.

Source: NIH ODS

General reference figures for a typical adult, not a personal target.