Apple pomace , apricot and carrot peel were utilized as rich sources of dietary fibers as well as citrus pectin to study the role of dietary fibers and pectin to minimize of cholesterol and its derivatives , high density lipoprotein (HDL), low density lipoprotein (LDL) and very low density lipoprotein (vIDL) levels in experimental animals. Changes In liver function enzymes, glutamic oxaloacetate transaminase (GOT) and glutamic pyrwate transaminase (GPT) were also determined during the feeding period (50 days) . The animals were hyperholesterolamk through feeding on high fat diet. The obtained resits reveal that feeding on high fat diets supplemented vdth10% fibers or I% pectin increased food efficiency ratio, body weight gain and daily body weight . Therefore, increasing fibers content in diets raised nutritional parameters as well as growth rate In rats . Rats fed on diets supplemented with 5 and 10% of apricot or carrot increased organs weight especiaky, liver and kidney than those fed on all other test diets. feeding on diets containing dietary fibers had long term effect on lowering total lipids, total cholesterol and triglyozrldes whereas , 0.5% citrus pectin had the greatest lowering effect followed by 10% apple pomace then 10% carrot and 5% apricot peel . Increasing fiber content in diet caused a decease of liver cholesterol content. On the other hand, supplementing diet with 0.5% citrus pectin decreased liver cholesterol content greatly . High density lipoprotein level was highly significantly increased in rats fed on diet supplemented with 10% carrot peel followed by diets containing 5% apricot peel and 10% apple pomace whie LDL.c and vLDLo were reduced. The addition of 0.5% pectin to the high fat diet raised the HDLG level approximately 37.90% and reduced greatly LDL.c and vLDT.c levels than those of rats fed on drug ( Omega 3A) . Concerning liver function enzymes were reduced by fiber administration whereas, pectin had a positive effect in lowering the activities of serum transaminases (GOT and GPT) .