Endocrinology, Diabetes and Metabolism Clinics, Private Practice, 26221 Patras, Greece.
Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614, USA.
Nutrients. 2023 Dec 28;16(1):111. doi: 10.3390/nu16010111.
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.
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).
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; 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.
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.
维生素 D 检测(VDT)和补充剂使用(VDS)呈上升趋势,但大多数患者仍存在维生素 D 缺乏症(<30ng/mL-VDD)。我们设计了本项真实世界研究来评估这一悖论。
我们回顾了 2014 年至 2022 年间在我们诊所就诊的所有患者的数据。我们按检测年份和月份估算了维生素 D 充足率(≥30ng/mL)(VDA),补充剂剂量(低(≤1200IU/天)、中(1201-3000 IU/天)和高剂量(>3000 IU/天))、摄入持续时间(短期(<12 个月)和长期使用(≥12 个月))以及使用时间(当前使用、以前使用、未使用)。
我们共纳入 6912 名接受维生素 D 检测的患者:女性 5195 名(75.2%),年龄 44.0±16.8 岁,BMI 27.9±6.5kg/m2;从未使用者:5553 名(80.3%),以前使用者:533 名(7.7%),当前使用者:826 名(12.0%)。女性更常使用 VDS。VDT 从 2014 年的 42.1%上升到 2022 年的 92.7%,VDA 从 14.8%上升到 25.5%。总体而言,有 1511 名患者 VDA 正常(21.9%);从未使用者:864 名(15.6%),以前使用者:123 名(23.2%),当前使用者:370 名(44.8%)。长期使用高剂量补充剂的患者 VDA 最高(67.9%)。
尽管 VDT 和 VDS 的使用显著增加,但只有少数患者的 VDA 正常。长期使用高剂量补充剂可适度提高 VDA。