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Effects of soy as tofu vs meat on lipoprotein concentrations

Citation

Ashton, E and Ball, MJ, Effects of soy as tofu vs meat on lipoprotein concentrations, European Journal of Clinical Nutrition, 54, (1) pp. 14-19. ISSN 0954-3007 (2000) [Refereed Article]

DOI: doi:10.1038/sj.ejcn.1600885

Abstract

Objectives: To investigate the effect of replacing lean meat with a soy product, tofu, on serum lipoprotein concentrations. Study and design: Randomized cross-over dietary intervention study. Subjects: Forty-two free-living healthy males aged 35-62 y completed the dietary intervention. Three additional subjects were non-compliant and excluded prior to analysis. Interventions: A diet containing lean meat (150 g/d) was compared with one with 290 g/d tofu in an isocaloric and isoprotein substitution. Both diet periods were 1 month, and fat intake was carefully controlled. Results: Seven-day diet records showed the two diets were similar in energy, macronutrients and fibre. Total cholesterol (mean difference 0.23 mmol/l, 95% CI 0.02, 0.43; P = 0.03) and triglycerides (mean difference 0.15 mmol/l, 95% CI 0.02, 0.31; P = 0.017) were significantly lower on the tofu diet than the lean meat diet. However, HDL-C was also significantly lower on the tofu diet (mean difference 0.08 mmol/l, 95% CI 0.02, 0.14; P = 0.01) although the LDL-C:HDL-C ratio was similar. Conclusion: The effect on HDL-C and the small LDL-C reduction differ from some other studies, where fat was often less controlled, and the comparison was of soy as textured protein or soymilk against casein. This suggests a differential effect of the various proteins compared to the soy may influence the findings. In practice, the replacement of meat with tofu would usually be associated with a decrease in saturated fat and an increase in polyunsaturated fat and this should enhance any small benefits due to the soy protein.

Item Details

Item Type:Refereed Article
Research Division:Medical and Health Sciences
Research Group:Medical Physiology
Research Field:Medical Physiology not elsewhere classified
Objective Division:Health
Objective Group:Other Health
Objective Field:Health not elsewhere classified
Author:Ball, MJ (Professor Madeleine Ball)
ID Code:21425
Year Published:2000
Web of Science® Times Cited:37
Deposited By:Health Sciences A
Deposited On:2005-07-15
Last Modified:2011-08-04
Downloads:0

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