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

ABSTRACT:

Background

Few studies have examined the secular trends of total calcium and vitamin D intake and their circulating levels together among adults in the United States (US). Understanding the trends of these nutrients may be useful for refining existing nutrition policy and guidelines.

Objective

The aim of this study was to report trends in total calcium and vitamin D intake and their circulating levels in the US population aged 18 years or older in 2007-2018.

Methods

This cross-sectional study identified adults aged 18 years or older in the US National Health and Nutrition Examination Survey (NHANES) from 2007 to 2018. Calcium and vitamin D intake including their supplements were the average of two 24-h recalls. Serum calcium and serum 25-hydroxyvitamin D [25(OH)D] wer

SUBMITTER: Du Y 

PROVIDER: S-EPMC11963807 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature