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 journalArticlepeer-review

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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