The effect of curcumin on hepatic fat content in individuals with obesity

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AIMS: To evaluate the effect of curcumin treatment on hepatic fat content in obese individuals.

MATERIALS AND METHODS: In a double-blind, parallel-group trial, 37 obese, non-diabetic individuals were randomised to placebo or curcumin treatment for six weeks. Curcumin was dosed as lecithin-formulated tablet; 200 mg twice daily. Primary endpoint was hepatic fat content as assessed by magnetic resonance spectroscopy (MRS). Other endpoints included anthropometric measurements, hepatic biomarkers including FibroScan® measurements, metabolic parameters, inflammation markers, appetite measures and ad libitum food intake.

RESULTS: Baseline characteristics (mean ± SD): age 46 ±14 years; hepatic fat content 12.2 ± 8.8 percent points; body mass index 38.8 ±6.1 kg/m 2 ; waist circumference 125.8 ± 12.3 cm. After six weeks treatment with curcumin, hepatic fat content was changed by -0.86 percent points (95% CI -3.65;1.94) compared to 0.71 percent points (95% CI -2.08;3.51) with placebo, thus resulting in a non-significant estimated treatment difference of -1.57 percent points (95% CI -5.36; 2.22, P = 0.412). Compared to placebo, curcumin treatment caused small reductions in fasting plasma glucose (estimated treatment difference (ETD) -0.24 mmol/L (95% CI -0.45; -0.03)), triglycerides (ETD (percentage change) -20.22% (95% CI -33.21; -6.03)), and gamma glutamyltransferase (ETD (percentage change) -15.70 (95% CI -23.32; -7.32)), but except for gamma glutamyltransferase, none of these differences remained statistically significant after adjusting for multiple testing. Treatment was well tolerated.

CONCLUSIONS: Compared to placebo, curcumin treatment for six weeks had no significant effect on MRS-assessed hepatic fat content in obese individuals with primarily mild steatosis. Curcumin was well tolerated. This article is protected by copyright. All rights reserved.

TidsskriftDiabetes, Obesity and Metabolism
Udgave nummer11
Sider (fra-til)2192-2202
Antal sider11
StatusUdgivet - 2022

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