A study published in Frontiers in Nutrition found that higher levels of vitamin D in the blood are associated with a lower risk of metabolically associated fatty liver disease (MASLD). Researchers analyzed data from 35,468 adults in China (2022–2025), including ultrasound results for the liver. After accounting for age, BMI, and other metabolic factors, they discovered that every additional 10 nmol/L of vitamin D corresponded to approximately a 7% lower likelihood of MASLD. The authors suggest vitamin D could serve as an additional marker of metabolic health, though they note the study was observational and does not prove that supplements can prevent the condition.
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