Vitamin D and Zinc Supplementation Effect in Cancer Incidence - An Analysis of NHANES 2017-2018

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Cindy Martinez
Alexandra Roman
Lennart Merkle
Khalid Al-Naamani
Isabela Schettini
Gabriel Beilfuss Rieth
Daniela Morales
Maria Gonzalez
Lisbeth Martinez
Emmanuel Bonilla
Mario Najera
Larine Cenci
Sophia Negrao
Pedro Kaufmann
Luiz Araujo
Natalia Moros
Maria Silvana Pellice
Azucena Armas
Katilenia Caraballo
Carolina Cardoso
Ayatullah Aly
Sintip Pattanakuhar
Ahmed Sweilim
Siyu Dai
Amin Saied
Klaithem Mohamed
Kazukiko Takemura
Adamu Dalhatu
Adela Lazar

Abstract

Background: Cancer remains a leading cause of mortality globally,  emphasizing the need for prevention strategies. Nutritional supplements like zinc and vitamin D have been studied for their potential cancer-preventing effects, given their roles in immune response and essential cellular functions, including cell differentiation, repair, and gene regulation. However, evidence linking these supplements to reduce cancer incidence is still inconclusive. This study evaluates whether zinc and vitamin D supplementation are associated with a lower risk of cancer, considering lifestyle factors modifications. 


Methods: This analysis utilized data from the 2017-2018 National Health and Nutrition Examination Survey (NHANES). The final sample included 5,569 participants after exclusions for missing data. Descriptive analysis assessed demographic characteristics, and logistic regression models evaluated associations between zinc and vitamin D supplements intake and cancer incidence, adjusting for covariates. Analyses were conducted using StataNow/BE 18.5.


Results: No significant associations were found between zinc or vitamin D intake and cancer risk after adjustments. Significant predictors of cancer incidence included age, gender, and race, with higher risk.


Conclusions: These findings suggest that zinc and vitamin D supplementation may not significantly reduce cancer risk in the general population. Cancer risk was more strongly associated with demographic factors like age, gender, and race.  Future research should explore the long-term effects of these nutrients in more specific subgroups or through randomized controlled trials.

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Vitamin D and Zinc Supplementation Effect in Cancer Incidence - An Analysis of NHANES 2017-2018. (2025). Principles and Practice of Clinical Research, 11(1). https://doi.org/10.21801/ppcrj.2025.111.10
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How to Cite

Vitamin D and Zinc Supplementation Effect in Cancer Incidence - An Analysis of NHANES 2017-2018. (2025). Principles and Practice of Clinical Research, 11(1). https://doi.org/10.21801/ppcrj.2025.111.10

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