ArticleThe Journal of nutrition2022
The Total Nutrient Index is a Useful Measure for Assessing Total Micronutrient Exposures Among US Adults.
Article in The Journal of nutrition, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Application of the Total Nutrient Index as a Precision Nutrition Tool to Address Dietary Recommendations Across the Life Course.Journal of the Academy of Nutrition and Dietetics · 2026Article
- Consuming Primarily Egg Dishes and Eggs as Ingredients among United States Adolescents Is Associated with Greater Usual Nutrient Intakes Compared with Not Consuming Eggs.The Journal of nutrition · 2026Article
- Nutrition for Older Adults: Perspectives on Dietary Guidance for Healthy Aging.Current developments in nutrition · 2026Article
- Modeling the Substitution of One Egg Increased the Nutrient Quality of Choline and Vitamin D in Exemplary Menus.Nutrients · 2025Article
- Analyzing dietary exposure to critical nutrients on a plant-based diet using the food- and total nutrient index.Nutrition journal · 2025Article
- Eating Egg-Rich Diets and Modeling the Addition of One Daily Egg Reduced Risk of Nutrient Inadequacy among United States Adolescents with and without Food Insecurity.The Journal of nutrition · 2024Article
- Diet quality in U.S. adults eating in senior and community centers: NHANES 2009-2018.The journal of nutrition, health & aging · 2024Article
- Continuity, Considerations, and Future Directions for the Healthy Eating Index-Toddlers-2020.Journal of the Academy of Nutrition and Dietetics · 2023Article
- Precision Nutrition: The Hype Is Exceeding the Science and Evidentiary Standards Needed to Inform Public Health Recommendations for Prevention of Chronic Disease.Annual review of nutrition · 2023Review
- Does Self-Perceived Diet Quality Align with Nutrient Intake? A Cross-Sectional Study Using the Food Nutrient Index and Diet Quality Score.Nutrients · 2023Article
- Protein-to-carbohydrate ratio is informative of diet quality and associates with all-cause mortality: Findings from the National Health and Nutrition Examination Survey (2007-2014).Frontiers in public health · 2022Article
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Authors and funding
12 authors.
Funding
Abstract
backgroundMost 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.
objectivesWe examined the construct and criterion validity of the Total Nutrient Index (TNI) among US adults (≥19 years; nonpregnant or lactating).
methodsThe 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 from 0-100. Data from exemplary menus and the 2003-2006 (≥19 years; n = 8861) and 2011-2014 NHANES (≥19 years; n = 9954) were employed. Exemplary menus were used to determine whether the TNI yielded high scores from dietary sources (women, 31-50 years; men ≥ 70 years). TNI scores were correlated with Healthy Eating Index (HEI) 2015 overall and component scores for dairy, fruits, and vegetables; TNI component scores for vitamins A, C, D, and E were correlated with respective biomarker data. TNI scores were compared between groups with known differences in nutrient intake based on the literature.
resultsThe TNI yielded high scores on exemplary menus (84.8-93.3/100) and was moderately correlated (r = 0.48) with the HEI-2015. Mean TNI scores were significantly different for DS users (83.5) compared with nonusers (67.1); nonsmokers (76.8) compared with smokers (70.3); and those living with food security (76.6) compared with food insecurity (69.1). Correlations of TNI vitamin component scores with available biomarkers ranged from 0.12 (α-tocopherol) to 0.36 (serum 25-hydroxyvitamin D), and were significantly higher than correlations obtained from the diet alone.
conclusionsThe evaluation of validity supports that the TNI is a useful construct to assess total micronutrient exposures of underconsumed micronutrients among US adults.
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