Effects of Dietary Oat, Barley, and Guar Gums on Serum and Liver Lipid Concentrations in Diet-Induced Hypertriglyceridemic Rats

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Effects of dietary oat, barley, and guar gums on serum and liver triglyceride or cholesterol concentrations were examined in diet-induced hypertriglyceridemic rats. Male Sprague-Dawley rats were fed a hypertriglyceridemic diet that contained 20% coconut oil, 17.5% fruc-tose, 17.5% sucrose, and 5% cellulose at 4 weeks of age for 14 days. In the gum-supplemented diets, 2% cellulose was replaced by oat gum, barley gum, or guar gum. Hypertriglyceridemia was observed in the control group, whereas serum cholesterol concentration was not in-creased. All of the gums lowered serum and liver cholesterol concentra-tions except barley gum which had no significant effect on liver cholester-ol. Both oat and barley gums suppressed the elevation of serum and liver triglyceride concentrations but guar gum had no effect.