Environmental researchFeb 22, 2025

Phthalate Exposure Linked to Metabolic Fatty Liver Disease: Systematic Review

Circadian Biology Weekly Brief ↗PubMed ↗DOI ↗

Updated Jan 12, 2026

Abstract

Ten cross-sectional studies indicate a potential correlation between metabolic dysfunction-associated steatotic liver disease (MASLD) and exposure to certain phthalates.

Phthalates, commonly used as plasticizers, may disrupt lipid metabolism and are associated with increasing MASLD prevalence.
Among the studied phthalates, metabolites of bis(2-ethylhexyl) phthalate (DEHP)—MECPP, MEHHP, and MEOHP—showed the strongest associations with MASLD.
All included studies utilized cross-sectional designs, limiting the ability to determine causation.
Further longitudinal studies are necessary to confirm the role of phthalate exposure in the development of MASLD.

Simplified

The prevalence of metabolic dysfunction-associated steatotic liver disease (MASLD) is rising globally. Recent studies have suggested connections between exposure to endocrine disrupting chemicals (EDCs) and the development of MASLD. Phthalates, which are commonly utilized as plasticizers, in building materials and consumer items, exhibit endocrine disrupting effects and have been shown to interfere with lipid metabolism in mechanistic studies. The objective of this systematic review was to examine the association between MASLD and exposure to phthalates in the adult human populations. We searched PubMed, Scopus and Web of Science for studies published from the inception of each database until December 12, 2024. The literature search yielded 10 cross-sectional studies, which were analyzed in detail. The key findings of this study indicate a potential correlation between the prevalence of MASLD and exposure to certain phthalates. Among the phthalates examined, the metabolites of bis(2-ethylhexyl) phthalate (DEHP) - namely MECPP, MEHHP, and MEOHP, demonstrated the strongest and most frequent associations with MASLD. All the current studies followed cross-sectional study designs, which limits the possibility to establish a causal relationship between MASLD and phthalate exposure. Therefore, longitudinal studies are needed to corroborate these findings and shed light on the involvement of phthalate exposure in MASLD.

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Phthalate Exposure Linked to Metabolic Fatty Liver Disease: Systematic Review

Abstract

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