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  • Title: Evaluation of the effect of vitamin A-fortified margarine on the vitamin A status of preschool Filipino children.
    Author: Solon FS, Solon MS, Mehansho H, West KP, Sarol J, Perfecto C, Nano T, Sanchez L, Isleta M, Wasantwisut E, Sommer A.
    Journal: Eur J Clin Nutr; 1996 Nov; 50(11):720-3. PubMed ID: 8933117.
    Abstract:
    OBJECTIVES: This study assessed the effects of consuming a highly hydrogenated, vitamin A (VA)-fortified margarine not requiring refrigeration on VA status of preschool children. DESIGN: A double-masked randomized community trial. SETTING: Six rural villages in Cavite, Southern Luzon, the Philippines. SUBJECTS: 296 and 285 children 3-6 y of age in the VA-fortified (experimental) and non-fortified (control) margarine groups, respectively. INTERVENTION: Each week for 6 months households were given 250 g of VA-fortified margarine [providing 28.8 micrograms retinol equivalents (RE) per g] or non-fortified (0 microgram RE) margarine of identical appearance for each enrolled child. Children's vitamin A status [serum retinol, xerophthalmia, and conjunctival impression cytology (CIC) status] and dietary intake were assessed at baseline and follow-up; margarine intake was monitored throughout the study. RESULTS: Daily margarine intake per child averaged 27 g in the experimental group (providing 776 micrograms RE) and 24 g (0 microgram RE) in the control group. After 6 months, mean serum retinol increased from 26.4 to 28.8 micrograms/dl in the experimental group but decreased from 26.6 to 25.1 micrograms/dl in controls (P < 0.001 at 6 months); the multiple-adjusted increment over controls was 2.4 micrograms/dl (P < 0.01). More importantly, the prevalence of low serum retinol (< 20 micrograms/dl) decreased from 25.7 to 10.1% in the experimental group but remained unchanged in controls (26.7 to 27.7%) (P < 0.01 at 6 months). At follow-up no experimental children had developed xerophthalmia but 1.4 and 1.8% of controls developed nightblindness and Bitot's spots, respectively. There were no differences in CIC between groups. CONCLUSION: Consumption of VA-fortified margarine significantly improved VA status of preschool Filipino children.
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