Plasma lipid effects of three common vegetable oils in reduced-fat diets of free-living adults

William Insull, Abraham Silvers, Linda Hicks, Jeffrey L. Probstfield

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

We compared plasma lipid changes due to the polyunsaturated fatty acids (PUFAs) in partially hydrogenated soybean oil, corn oil, and sunflower oil fed in reduced-fat diets (22-26% of total energy). Each oil was the dominant fat in isoenergetic diets of centrally prepared foods consumed by 26 male and 35 female normolipidemic, free-living individuals. Test diets were consumed double-blind, alternating with self-selected diets for 5 wk each. The ranges of proportions of total fat were: 4.7-9.7% polyunsaturated fat, 8.9-14.2% monounsaturated fat and 5.4-7.4% saturated fat. All three diets lowered (P < 0.0001) total cholesterol (11%), LDL cholesterol (13%), and HDL cholesterol (10%), without triglyceride changes. We conclude that PUFAs at ≃6% of total energy result in clinically relevant plasma cholesterol-lowering and that the proportion of polyunsaturated fat must be an important consideration when planning reduced fat, reduced-saturated-fat diets.

Original languageEnglish (US)
Pages (from-to)195-202
Number of pages8
JournalAmerican Journal of Clinical Nutrition
Volume60
Issue number2
DOIs
StatePublished - Jan 1 1994

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics

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