A hypocaloric high-protein diet supplemented with β-cryptoxanthin improves non-alcoholic fatty liver disease: a randomized controlled trial

BMC Gastroenterology

Kambiz Ahmadi-Angali¹  Seyed-Saeed Seyedian²  Bizhan Helli³  Fatemeh Haidari³  Abdollah Hojhabrimanesh³  Behnaz Abiri⁴ 

[1] Department of Epidemiology and Biostatistics, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran;Department of Gastroenterology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran;Department of Nutrition Sciences, Nutrition and Metabolic Diseases Research Center, School of Paramedical Sciences, Ahvaz Jundishapur University of Medical Sciences, 61357-15794, Ahvaz, Iran;Department of Nutrition, Faculty of Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran;

关键词: Non-alcoholic fatty liver disease;    β-Cryptoxanthin;    High protein diet;   

DOI  :  10.1186/s12876-020-01502-w

来源: Springer

【 摘 要 】

BackgroundDespite promising animal data, there is no randomized controlled trial (RCT) on the effects of high protein (HP)-diet and/or β-cryptoxanthin in non-alcoholic fatty liver disease (NAFLD). Aims: Safety and efficacy assessment of a hypocaloric HP-diet supplemented with β-cryptoxanthin in NAFLD.MethodsNinety-two Iranian NAFLD outpatients were recruited for this 12-week, single-center, parallel-group, double-blind RCT and randomized into 4 arms (n = 23): HP-diet and β-cryptoxanthin (hypocaloric HP-diet + β-cryptoxanthin), HP-diet (hypocaloric HP-diet + placebo), β-cryptoxanthin (standard hypocaloric diet + β-cryptoxanthin), and control (standard hypocaloric diet + placebo). Serum levels of liver enzymes and grade of hepatic steatosis were assessed at baseline and study endpoint as outcome measures.ResultsIn the intention-to-treat population (N = 92), HP-diet and β-cryptoxanthin group experienced greater 12-week reductions in serum levels of liver enzymes than control group (mean difference for alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, and gamma-glutamyl transferase: − 27.2, − 7.2, − 39.2, and − 16.3 IU/L, respectively; all p < 0.010). Clinical remission rate (achieving grade 0 hepatic steatosis) in HP-diet and β-cryptoxanthin group (82.6%) was also higher than other groups (13.0%, 17.4%, and 0.0% in HP-diet, β-cryptoxanthin, and control groups, respectively; p < 0.001). Sixteen patients reported minor adverse events.ConclusionA hypocaloric HP-diet supplemented with β-cryptoxanthin safely and efficaciously improves NAFLD.Trial registration numberThis trial was registered at https://www.irct.ir as IRCT2017060210181N10.

【 授权许可】

CC BY