Vitamin D3 Deficiency in Non-Alcoholic Fatty Liver Disease

Regarding the importance of non-alcoholic fatty liver disease (NAFLD) and the high prevalence of vitamin D3 deficiency in different societies. This study aimed to evaluate the distribution of Vit D3 deficiency in individuals with non-alcoholic fatty liver disease. In this cross-sectional study, 122 individuals with non-alcoholic fatty liver disease were selected by a simple sampling method. After collecting demographic data, serum Vit 25(OH) D3 level was measured by the ELFA method. Blood lipids level (TG, cholesterol, HDL, LDL), FBS, AST, ALT, alkaline phosphatase, total and direct bilirubin, albumin, and PT were measured by the enzymatic method. To analyze the data, descriptive and analytical methods and SPSS software version 16 were used. The study cases are comprised of 122 individuals (57.4% male). The average age of cases was 42.4±11.7 years, and the mean of serum Vit D3 level was 19.8±22 ng/dl (3-220 ng/dl). Regarding the serum 25(OH) D3 levels data showed 66.4% of cases were Vit D3 deficient (Vit D3 level< 20 ng/dl), 18% had insufficient level (Vit D3 level=20-30 ng/dl), and the remained 15.6% had sufficient level (Vit D3 level> 30 ng/dl). HDL level was higher in individuals with 25(OH) D3 sufficiency compared to those with 25(OH) D3 insufficiency and Vit D3 deficiency (P=0.019). There was no significant relationship between serum Vit D3 level and other investigated variables. The results of this study indicated that most individuals with non-alcoholic fatty liver disease had Vit D3 deficiency. Further studies are suggested.