The Relationship Between Dietary Na/K Ratio and Bone Mineral Density in Korean Middle-Aged Women

Overview

Journal Korean J Fam Med

Specialty Public Health

Date 2023 Jan 29

PMID 36709957

Authors

Seong Su Choi

Yun-A Kim

Hyun Ji Kim

Yoon Jeong Cho

Geon Ho Lee

Affiliations

Soon will be listed here.

Abstract

Background: Dietary Na+ or Na+/K+ ratio has been reported to be associated with bone mineral density (BMD). However, this remains unclear, and only a few studies have been reported on the Korean population. Therefore, this study aimed to determine the association between dietary Na+, K+, and Na+/K+ ratios and BMD in middle-aged Korean women.

Methods: This study used data from the Korea National Health and Nutrition Examination Survey 2008-2011. A total of 3,690 women aged >50 years were included. Study participants were classified into quartiles (lowest quartile Q1-highest quartile Q4) according to dietary Na+, K+, and Na+/K+ ratio, and we examined the association of these parameters with BMD. Total femur and lumbar spine BMD were measured using dual-energy X-ray absorptiometry. Multiple linear regression analyses were performed using IBM SPSS ver. 19.0.

Results: The mean age was 62 years, and a significant negative trend in the β-coefficient regarding dietary Na+ was only observed in the total femur BMD. However, the total femur and lumbar spine BMD decreased from Q1 to Q4 regarding the dietary Na+/K+ ratio (P-value for trend: 0.044 for total femur BMD and 0.002 for lumbar spine BMD).

Conclusion: A significant negative trend in the β-coefficient for both total femur and lumbar spine BMD was observed regarding the Na+/K+ ratio. Therefore, based on the results of this study, a higher dietary Na+/K+ ratio may be associated with a lower BMD.

Citing Articles

Does Changing the Ratio of Dietary Sodium-to-Potassium Intake Affect Bone Mineral Density?.

Kim S Korean J Fam Med. 2023; 44(1):1.

PMID: 36709955 PMC: 9887451. DOI: 10.4082/kjfm.44.1E.

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