Dose-response Effects of Soybean Oil in Salad Dressing on Carotenoid/Fat-soluble Vitamin Bioavailability in Salad Vegetables
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The objectives will be to evaluate the dose-response between the amount of soybean oil in salad dressing and the absorption of: 1) carotenoids, phylloquinone, and tocopherols in salad vegetables; 2) retinyl palmitate formed from the provitamin A carotenoids, alpha- and beta-carotene.
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Layout table for eligibility information
Ages Eligible for Study:
18 Years to 40 Years (Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
General good health as determined by interview, blood biochemistry profile, complete blood count, and plasma lipid and lipoprotein profile
Cigarette smoking, frequent alcohol consumption
Use of vitamin/mineral supplements
Known food allergies
Body mass index (BMI) 30 or higher
Eating disorder or restrained eating
Current or planned pregnancy
Use of hormonal contraceptives (affects chylomicron clearance); use of plant sterols or medications known to affect lipid metabolism