Abstract
Background: Structured lipids are being incorporated into foods tO reduce their energy value. One such lipid is rich in stearic acid. Objective: The objective of this study was tO compare the effects on plasma lipids of a stearic acid-rich triacylglycerol and a fat rich in palmitic acid in hypercholesterolemic subjects. Design: Fifteen subjects with an average plasma cholesterol concentration of 6.13 ± 0.80 mmol/L initially ate a low- fat diet for 2 wk (run-in period), followed in random order and blinded fashion by 2 high-fat diets (for 5 wk each) containing foods derived froth margarines rich either in palmitic acid or in the structured, stearic acid- rich triacylglycerol. Results: Plasma cholesterol concentrations with the low-fat, the stearic acid-rich, and the palmitic acid-rich diets were not significantly different (5.35 ± 0.83, 5.41 ± 0.78, and 5.52 ± 0.68 mmol/L, respectively) but were significantly lower (P < 0.001) than those measured during the habitual diet period (ie, 2 wk before the study began). Neither HDL cholesterol nor plasma triacylglycerol differed significantly among the 3 study diets. Conclusion: A similar increase in the intake of stearic and palmitic acids (differing by ≃5% of total energy) to ensure a high fat intake resulted in plasma total and LDL-cholesterol concentrations that did not differ significantly from concentrations measured during a period of low- fat intake.
Original language | English |
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Pages (from-to) | 1196-1201 |
Number of pages | 6 |
Journal | American Journal of Clinical Nutrition |
Volume | 68 |
Issue number | 6 |
Publication status | Published - Dec 1998 |
Externally published | Yes |
Keywords
- Adults
- Humans
- Palmitic acid
- Plasma lipids
- Stearic acid-rich structured lipid