Participants were randomly divided based on age, sex and severity of steatosis in two groups. Randomization lists were computer-generated by a statistician and participants, project managers and employees at the clinic were completely unaware (blind) about intervention and control groups. At the first visit, baseline data were gathered and patients advised to consume 2 capsules content 500 mg of ginger (made in Green Plants of Life Pharmaceutics Co., Iran) or placebo (starch) one hour after breakfast and two capsules after dinner for 3 weeks. Capsules was administrated for all patients in the first week for 3 weeks and in each visit new series of supplement was prescribed.

2 capsules content 500 mg of placebo(starch) (made in Green Plants of Life Pharmaceutics Co., Iran) one hour after breakfast and two capsules after dinner for 3 weeks. Capsules was administrated for all patients in the first week for 3 weeks and in each visit new series of supplement was prescribed.

controlled attenuation parameter(CAP) score is a novel measurement for evaluation of hepatic steatosis and it evaluated in dB/m at 3.5 MHz by M probe. normal range is 100- 140 dB/M.