AUTHOR=Du Yongliang , Ma Chao , Shang Zhaoyue , Zhang Xiaohua , Duan Yanlin , Liu Tong , Yu Yang , Yang Shuman 

TITLE=Secular trends of vitamin D and calcium intake and their circulating levels in US adults from 2007 to 2018

JOURNAL=Frontiers in Nutrition

VOLUME=12

YEAR=2025

URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1538019

DOI=10.3389/fnut.2025.1538019

ISSN=2296-861X