Abstract
The effects of hydrolyzed guar gum on lipid metabolism in humans were examined. Hydrolyzed guar gum is a water-soluble dietary fiber with a low viscosity that is prepared by hydrolyzing guar gum enzymically. Healthy young volunteers who had serum cholesterol concentrations of 190 mgldl (4.91 mmol/l), or higher, ingested 5 or 15 g of hydrolyzed guar gum daily for 2 consecutive weeks. The changes in serum parameters were monitored. Mean dietary fiber intake during the test period was 8.0 glday and 10.8 glday for the 5 glday intake group and 15 glday intake group, respectively. In the 5 glday intake group, serum cholesterol and glucose concentrations tended to fall, and free fatty acid decreased significantly. In the 15 glday intake group, serum cholesterol, free fatty acid and glucose concentrations all fell significantly. Serum triglyceride and phospholipid concentrations showed little changes in either group. These results indicate that the intake of hydrolyzed guar gum may improve lipid metabolism in humans.
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