ArticleJournal of agricultural and food chemistry2016
Interlaboratory Trial for Measurement of Vitamin D and 25-Hydroxyvitamin D [25(OH)D] in Foods and a Dietary Supplement Using Liquid Chromatography-Mass Spectrometry.
Article in Journal of agricultural and food chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
11 citing papers in PubMed, 22 citations in OpenAlex.
- Value Assignment of Vitamin D and 25-Hydroxyvitamin D in Food-Matrix Standard Reference Materials (SRMs) Using Isotope Dilution Liquid Chromatography-Tandem Mass Spectrometry (ID LC-MS/MS).Journal of agricultural and food chemistry · 2026Article
- Natural Vitamin D in Food: To What Degree Does 25-Hydroxyvitamin D Contribute to the Vitamin D Activity in Food?JBMR plus · 2021Article
- The Importance of Reference Materials and Method Validation for Advancing Research on the Health Effects of Dietary Supplements and Other Natural Products.Frontiers in nutrition · 2021Review
- Challenges to Quantify Total Vitamin Activity: How to Combine the Contribution of Diverse Vitamers?Current developments in nutrition · 2019Review
- Obesity Decreases Hepatic 25-Hydroxylase Activity Causing Low Serum 25-Hydroxyvitamin D.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2019Article
- The effects of maternal dietary supplementation of cholecalciferol (vitamin DTranslational animal science · 2019Article
- Evolution of reference materials for the determination of organic nutrients in food and dietary supplements-a critical review.Analytical and bioanalytical chemistry · 2019Review
- Dietary Supplement Ingredient Database (DSID) and the Application of Analytically Based Estimates of Ingredient Amount to Intake Calculations.The Journal of nutrition · 2018Article
- The Dietary Supplement Label Database: Recent Developments and Applications.The Journal of nutrition · 2018Article
- Article
- The Emerging Issue of 25-Hydroxyvitamin D in Foods.The Journal of nutrition · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
19 authors at 9 institutions in 3 countries.
Funding
Abstract
Assessment of total vitamin D intake from foods and dietary supplements (DSs) may be incomplete if 25-hydroxyvitamin D [25(OH)D] intake is not included. However, 25(OH)D data for such intake assessments are lacking, no food or DS reference materials (RMs) are available, and comparison of laboratory performance has been needed. The primary goal of this study was to evaluate whether vitamin D3 and 25(OH)D3 concentrations in food and DS materials could be measured with acceptable reproducibility. Five experienced laboratories from the United States and other countries participated, all using liquid chromatography tandem-mass spectrometry but no common analytical protocol; however, various methods were used for determining vitamin D3 in the DS. Five animal-based materials (including three commercially available RMs) and one DS were analyzed. Reproducibility results for the materials were acceptable. Thus, it is possible to obtain consistent results among experienced laboratories for vitamin D3 and 25(OH)D3 in foods and a DS.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.