The Total Nutrient Index is a Useful Measure for Assessing Total Micronutrient Exposures Among US Adults.

ABSTRACT:

Background

Most dietary indices reflect foods and beverages and do not include exposures from dietary supplements (DS) that provide substantial amounts of micronutrients. A nutrient-based approach that captures total intake inclusive of DS can strengthen exposure assessment.

Objectives

We examined the construct and criterion validity of the Total Nutrient Index (TNI) among US adults (≥19 years; nonpregnant or lactating).

Methods

The TNI includes 8 underconsumed micronutrients identified by the Dietary Guidelines for Americans: calcium; magnesium; potassium; choline; and vitamins A, C, D, and E. The TNI is expressed as a percentage of the RDA or Adequate Intake to compute micronutrient component scores; the mean of the component scores yields the TNI score, ranging fro

SUBMITTER: Cowan AE 

PROVIDER: S-EPMC8891182 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature