Maternal supplementation with natural or synthetic vitamin E and its levels in human colostrum.
2015
OBJECTIVES: Newborns are considered a high-risk group for vitamin E deficiency. Breast milk is a source of alpha-tocopherol (α-TOH), a form of vitamin E that prevents deficiency. The present study aimed to assess whether supplementation with a natural or synthetic form of α-TOH, in addition to maternal sources of vitamin E, would increase the concentration of α-TOH in colostrum. METHODS: A total of 109 healthy lactating women were recruited from a Brazilian public maternity clinic and randomized into 3 groups: control without supplementation (n = 36), natural α-TOH supplementation (n = 40), and synthetic α-TOH supplementation (n = 33). Blood and colostrum samples were collected before and after supplementation to check the nutritional status of these women by high-performance liquid chromatography. The Kruskal-Wallis test was applied for independent samples, and Tukey test was used for 2-way analysis of the averages of the groups. The baseline nutritional status of vitamin E of all of the lactating women enrolled in the trial was considered adequate. RESULTS: Women who received supplementation had higher concentrations of α-TOH in colostrum than the control group, with 57% and 39% increases in women supplemented with the natural and synthetic forms of α-TOH, respectively. CONCLUSIONS: Supplementation with both forms of α-TOH increased vitamin E concentrations in colostrum; however, the natural form was more efficient in increasing the levels.
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