Effect of Low Fat Diet, Almonds, Green Coffee and Mackerel Fish on Obese Rats

Abstract

The present work was conducted to study the effect of low fat diet (LFD), almonds, green coffee, mackerel fish and the combination of all of them on loss of weight, lipid profile, serum glucose, leptin hormone, liver enzymes and kidney functions of obese rats. Methods: In this research, researcher used normal male albino rats (n=42). This group of rats was divided into two major groups. The first group (n=6 rats) fed on standard diet and was considered as a group of negative control. The second group (n= 36 rat) fed high fat diet for six weeks on to induce of obesity. Rats in the second group were randomly assigned to six equal subgroups: Subgroup (1) fed on HFD (consist of 20% fat) and used as (control positive) 1; Subgroups (2) fed on LFD containing only (10% fat) and used as (control positive) 2. Subgroup The third sub-group feeds on low fat diet LFD containing (almonds, which provided the diet with 5% oil hydrogenated oils 4% and soy oil 1%). Subgroup (4) fed on LFD and treated each rat daily in this group with 3 ml green coffee. Subgroup (5) fed on LFD containing (mackerel fish, which provided the diet with 5% fat, hydrogenated oils 4% and soy oil 1%). Subgroup (6) fed on LFD containing (almonds which provided the diet with 5% oil and mackerel fish which provided the diet with 5% oil) and treated each rat daily in this group with 3 ml green coffee The obtained data were tested with one-way ANOVA (mean ± standard deviation and one-way ANOVA test) using SAS package and compared with each other using the LSD (least significant differences at P< 0.05.   Results: Body weight gain % of rats increased significantly by feeding on a high-fat diet, also, serum "glucose, leptin hormone, cholesterol, triglyceride, lipoprotein cholesterol except HDL-c, kidney functions, liver increased in rats fed on HFD, while high-density lipoprotein cholesterol decreased, in comparison with the group of negative control group fed on basal diet. Conclusion: Treatment of obese rats with LFDs, LFDs containing almond, LFDs containing green coffee, LFDs containing mackerel fish, and obese rats treated with all these improved all parameters.