Intense Testing and Use of Vitamin D Supplements Leads to Slow Improvement in Vitamin D Adequacy Rates: A Cross-Sectional Analysis of Real-World Data

Background: Vitamin D testing (VDT) and supplement use (VDS) are on the rise, but most patients remain deficient (<30 ng/mL-VDD). We designed the present real-world study to assess this paradox. Methods: We reviewed data from all patients visiting our clinics between 2014 and 2022. We estimated t...

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Main Authors: Rodis D. Paparodis, Dimitra Bantouna, Evangelos Karvounis, Ioannis Zoupas, Sarantis Livadas, Nicholas Angelopoulos, Shahnawaz Imam, Dimitrios T. Papadimitriou, Juan C. Jaume
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/16/1/111
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author Rodis D. Paparodis
Dimitra Bantouna
Evangelos Karvounis
Ioannis Zoupas
Sarantis Livadas
Nicholas Angelopoulos
Shahnawaz Imam
Dimitrios T. Papadimitriou
Juan C. Jaume
author_facet Rodis D. Paparodis
Dimitra Bantouna
Evangelos Karvounis
Ioannis Zoupas
Sarantis Livadas
Nicholas Angelopoulos
Shahnawaz Imam
Dimitrios T. Papadimitriou
Juan C. Jaume
author_sort Rodis D. Paparodis
collection DOAJ
description Background: Vitamin D testing (VDT) and supplement use (VDS) are on the rise, but most patients remain deficient (<30 ng/mL-VDD). We designed the present real-world study to assess this paradox. Methods: We reviewed data from all patients visiting our clinics between 2014 and 2022. We estimated the rate of patients with vitamin D adequacy (≥30 ng/mL) (VDA) by year and month of testing, the dose of VDS (low (≤1200 IU/day), medium (1201–3000 I/day) and high dose (>3000 IU/day)), intake duration (short-term (<12 months) and long-term use (≥12 months)), and timing of use (current use, former use, no use). Results: We enrolled n = 6912 subjects with vitamin D measurements: n = 5195 females (75.2%), age 44.0 ± 16.8 years, BMI 27.9 ± 6.5 kg/m<sup>2</sup>; never users: n = 5553 (80.3%), former users: n = 533 (7.7%), current users: n = 826 (12.0%). Current use of VDS was higher in females. VDT rose from 42.1% in 2014 to 92.7% in 2022, and VDA rose from 14.8% to 25.5% for the same time. VDA was found overall in n = 1511 (21.9%); Never users: n = 864 (15.6%), Former users: n = 123 (23.2%); and Current users: n = 370 (44.8%). The maximal VDA (67.9%) was found in subjects using high-dose VDS in the long term. Conclusions: Despite the significant rise in VDT and VDS use, VDA was found in a minority of patients. Prolonged use of high-dose supplements produces modest improvements in VDA.
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spelling doaj.art-7199e88bf43e406390e41010985f41742024-01-10T15:05:35ZengMDPI AGNutrients2072-66432023-12-0116111110.3390/nu16010111Intense Testing and Use of Vitamin D Supplements Leads to Slow Improvement in Vitamin D Adequacy Rates: A Cross-Sectional Analysis of Real-World DataRodis D. Paparodis0Dimitra Bantouna1Evangelos Karvounis2Ioannis Zoupas3Sarantis Livadas4Nicholas Angelopoulos5Shahnawaz Imam6Dimitrios T. Papadimitriou7Juan C. Jaume8Endocrinology, Diabetes and Metabolism Clinics, Private Practice, 26221 Patras, GreeceHellenic Endocrine Network, 10682 Athens, GreeceEndocrine Surgery Center of Excellence, Euroclinic Hospital, 11528 Athens, GreeceSchool of Medicine, University of Athens, 11527 Athens, GreeceHellenic Endocrine Network, 10682 Athens, GreeceHellenic Endocrine Network, 10682 Athens, GreeceCenter for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614, USAHellenic Endocrine Network, 10682 Athens, GreeceDepartment of Medicine, Edward Hines, Jr. VA Hospital, Loyola University Chicago, Hines, IL 60141, USABackground: Vitamin D testing (VDT) and supplement use (VDS) are on the rise, but most patients remain deficient (<30 ng/mL-VDD). We designed the present real-world study to assess this paradox. Methods: We reviewed data from all patients visiting our clinics between 2014 and 2022. We estimated the rate of patients with vitamin D adequacy (≥30 ng/mL) (VDA) by year and month of testing, the dose of VDS (low (≤1200 IU/day), medium (1201–3000 I/day) and high dose (>3000 IU/day)), intake duration (short-term (<12 months) and long-term use (≥12 months)), and timing of use (current use, former use, no use). Results: We enrolled n = 6912 subjects with vitamin D measurements: n = 5195 females (75.2%), age 44.0 ± 16.8 years, BMI 27.9 ± 6.5 kg/m<sup>2</sup>; never users: n = 5553 (80.3%), former users: n = 533 (7.7%), current users: n = 826 (12.0%). Current use of VDS was higher in females. VDT rose from 42.1% in 2014 to 92.7% in 2022, and VDA rose from 14.8% to 25.5% for the same time. VDA was found overall in n = 1511 (21.9%); Never users: n = 864 (15.6%), Former users: n = 123 (23.2%); and Current users: n = 370 (44.8%). The maximal VDA (67.9%) was found in subjects using high-dose VDS in the long term. Conclusions: Despite the significant rise in VDT and VDS use, VDA was found in a minority of patients. Prolonged use of high-dose supplements produces modest improvements in VDA.https://www.mdpi.com/2072-6643/16/1/111vitamin D deficiencyvitamin D supplementationvitamin D insufficiencyvitamin D adequacycholecalciferol
spellingShingle Rodis D. Paparodis
Dimitra Bantouna
Evangelos Karvounis
Ioannis Zoupas
Sarantis Livadas
Nicholas Angelopoulos
Shahnawaz Imam
Dimitrios T. Papadimitriou
Juan C. Jaume
Intense Testing and Use of Vitamin D Supplements Leads to Slow Improvement in Vitamin D Adequacy Rates: A Cross-Sectional Analysis of Real-World Data
Nutrients
vitamin D deficiency
vitamin D supplementation
vitamin D insufficiency
vitamin D adequacy
cholecalciferol
title Intense Testing and Use of Vitamin D Supplements Leads to Slow Improvement in Vitamin D Adequacy Rates: A Cross-Sectional Analysis of Real-World Data
title_full Intense Testing and Use of Vitamin D Supplements Leads to Slow Improvement in Vitamin D Adequacy Rates: A Cross-Sectional Analysis of Real-World Data
title_fullStr Intense Testing and Use of Vitamin D Supplements Leads to Slow Improvement in Vitamin D Adequacy Rates: A Cross-Sectional Analysis of Real-World Data
title_full_unstemmed Intense Testing and Use of Vitamin D Supplements Leads to Slow Improvement in Vitamin D Adequacy Rates: A Cross-Sectional Analysis of Real-World Data
title_short Intense Testing and Use of Vitamin D Supplements Leads to Slow Improvement in Vitamin D Adequacy Rates: A Cross-Sectional Analysis of Real-World Data
title_sort intense testing and use of vitamin d supplements leads to slow improvement in vitamin d adequacy rates a cross sectional analysis of real world data
topic vitamin D deficiency
vitamin D supplementation
vitamin D insufficiency
vitamin D adequacy
cholecalciferol
url https://www.mdpi.com/2072-6643/16/1/111
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