A Pilot Study to Evaluate the Effect of Soy Isolate Protein on the Serum Lipid Profile and Other Potential Cardiovascular Risk Markers in Moderately Hypercholesterolemic Chinese Adults

Abstract

This article examines the effect of soy isolate protein on the serum lipids and other potential cardiovascular risk markers in 90 moderately hypercholesterolemic Chinese adults (64 women and 26 men, aged 25 to 70 years). Fasting blood samples were taken before and after consuming 24 g of protein supplied by soy isolate protein supplement (including 18 g soy protein and 6 g milk protein) or milk protein supplement daily for 8 weeks. Dietary intake was assessed by a 3-day record collected at baseline, week 4, and week 8 of the study. The results indicate that the two kinds of protein can modestly improve serum lipids and markers associated with obesity and inflammation.

Keywords:

• soy protein
• serum lipids
• hypercholesterolemic Chinese adults
• inflammation

ACKNOWLEDGMENTS

We are grateful to Amway China R&D Centre who has kindly supplied the product used in this study. We also thank Maly Gene, Li xia Zhong, Ying zhen Liang, Jia Li, and Li yun Zhang for their role in preparing the study samples and continued support throughout the trial.