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Effects of diets naturally high or low in conjugated linoleic acid on measures of health in women
Author(s) -
Brown Andrew William,
Trenkle Allen H,
Beitz Donald C
Publication year - 2009
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.23.1_supplement.334.6
Subject(s) - conjugated linoleic acid , pasture , composition (language) , food science , linoleic acid , chemistry , lipoprotein , biology , zoology , cholesterol , biochemistry , fatty acid , agronomy , linguistics , philosophy
Conjugated linoleic acid (CLA) consumption purportedly alters body composition, glucose tolerance, lipoprotein distributions, and other health markers, though reports are often contradictory or inconclusive. The present study aimed to determine if CLA in a natural food matrix alters selected markers of health by presenting isocaloric, nutritionally complete diets containing 31% energy from lipid, 13% energy from protein, and 54% energy from carbohydrates that contained either products naturally high in CLA (1.17 g/d) from pasture‐fed cattle or naturally low in CLA (0.35 g/d) from grain‐fed cattle to 18 generally healthy women age 20‐39 y in a parallel arm study. Incorporation of products of pasture‐fed origin enriched with CLA resulted in no differences in insulin sensitivity, body composition, circulating lipids, nor other measured disease risk factors as compared with the commercial, low CLA diet. We conclude that a diet naturally enriched with a 3.5 fold increase in CLA by incorporation of products from pasture‐fed cattle added no measured health benefits when compared to the low CLA diet. Grant Funding Source USDA‐CSREES no. 2001‐38640‐10270