{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T17:21:05Z","timestamp":1787678465674,"version":"build-2784847793"},"reference-count":30,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T00:00:00Z","timestamp":1787616000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Nutr."],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Dietary labels, calorie targets and broad food-group advice do not by themselves show whether nutrient functions are preserved when foods are excluded or substituted. This study developed a proposed nine-domain nutrient-function architecture to translate adult nutrient requirements into auditable food-source decisions across contrasting dietary preferences and calorie tiers.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>The architecture was developed through a design-based, criterion-referenced process beginning with the declared nutrient, dependency, safety and implementation requirement universe; mapping recurrent substitution failures; clustering failures by shared planning action; and applying eight domain-retention criteria. Eleven source-availability archetypes were crossed with four maintenance calorie-tier anchors to generate 44 internal model-evaluation scenarios. Foods consumed periodically were converted to average daily equivalents. Candidate food quantities were iteratively reconciled against tier energy bands, benchmark adequacy, domain coverage, source dependencies, upper-limit screens and practical portions. Compatible ordinary foods were considered first; unresolved gaps or narrow-source vulnerabilities then triggered evaluation of alternative foods, verified fortification, targeted sources or conditional interpretation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The model generated 1,012 non-energy scenario-nutrient rows. Sodium was retained as a safety\/contextual output, leaving 22 ordinary adequacy nutrients and 968 ordinary adequacy rows. Final evaluated scenarios met a mean of 20.64 of 22 ordinary nutrients, with a scenario range of 19\u201321 and variant means of 20.25\u201321.00. Tier means increased from 20.00 in Lite to 21.00 in High-Output Maintenance. Iron and zinc each produced eight near-adequacy findings; no ordinary nutrient produced a moderate or major gap. Vitamin D remained conditional in all scenarios. Fortified plant milk, fortified nutritional yeast, algal EPA\u202f+\u202fDHA, iodized salt and a capped selenium source materially affected selected outputs. The safety screen produced 484 no-UL, 374 within-UL, 47 watch and 151 exceedance flags; most exceedance flags involved form-sensitive vitamin A, niacin and folate comparisons or sodium. Thirty-three scenarios showed moderate and 11 high sensitivity to the tested assumptions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The proposed architecture generated broad modelled benchmark coverage while making compensatory sources, conditional findings, source-form safety issues and broader food-matrix pathways visible. These internally constructed scenarios demonstrate feasibility under declared assumptions, not independent validation, clinical efficacy, real-world adherence or universal individual sufficiency.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fnut.2026.1923749","type":"journal-article","created":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T16:36:48Z","timestamp":1787675808000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["A proposed nine-domain nutrient-function architecture for modelling adult nutrient adequacy across dietary preference variants and calorie tiers"],"prefix":"10.3389","volume":"13","author":[{"given":"Vivek","family":"Singh","sequence":"first","affiliation":[{"name":"Healthisnow Consultancy Pvt Ltd","place":["New Delhi, India"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,8,25]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"e1590","DOI":"10.1016\/S2214-109X(24)00276-6","article-title":"Global estimation of dietary micronutrient inadequacies: a modelling analysis","volume":"12","author":"Passarelli","year":"2024","journal-title":"Lancet Glob Health"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"1958","DOI":"10.1016\/S0140-6736(19)30041-8","article-title":"Health effects of dietary risks in 195 countries, 1990-2017: a systematic analysis for the global burden of disease study 2017","volume":"393","year":"2019","journal-title":"Lancet"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"1998","DOI":"10.1016\/j.jand.2020.08.076","article-title":"Diet quality as assessed by the healthy eating index, alternate healthy eating index, dietary approaches to stop hypertension score, and health outcomes: a second update of a systematic review and meta-analysis of cohort studies","volume":"120","author":"Morze","year":"2020","journal-title":"J Acad Nutr Diet"},{"key":"ref4","doi-asserted-by":"publisher","first-page":"831","DOI":"10.1016\/j.jand.2025.02.002","article-title":"Vegetarian dietary patterns for adults: a position paper of the academy of nutrition and dietetics","volume":"125","author":"Raj","year":"2025","journal-title":"J Acad Nutr Diet"},{"key":"ref5","doi-asserted-by":"publisher","first-page":"114","DOI":"10.3390\/dietetics3020010","article-title":"Common nutritional shortcomings in vegetarians and vegans","volume":"3","author":"Gibbs","year":"2024","journal-title":"Dietetics"},{"key":"ref6","doi-asserted-by":"publisher","first-page":"1580","DOI":"10.1017\/S000711452300051X","article-title":"Systematic review and meta-analysis of iodine nutrition in modern vegan and vegetarian diets","volume":"130","author":"Eveleigh","year":"2023","journal-title":"Br J Nutr"},{"key":"ref7","doi-asserted-by":"publisher","first-page":"304","DOI":"10.3945\/ajcn.2010.29468","article-title":"Micronutrient quality of weight-loss diets that focus on macronutrients: results from the a TO Z study","volume":"92","author":"Gardner","year":"2010","journal-title":"Am J Clin Nutr"},{"key":"ref8","doi-asserted-by":"publisher","first-page":"24","DOI":"10.1186\/1550-2783-7-24","article-title":"Prevalence of micronutrient deficiency in popular diet plans","volume":"7","author":"Calton","year":"2010","journal-title":"J Int Soc Sports Nutr"},{"key":"ref9","article-title":"Healthy Eating Index (HEI). 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