Nutrition
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Clinical Trial Controlled Clinical Trial
Effect of folic acid supplementation on plasma zinc concentrations of young women.
Women of reproductive age are advised to consume supplements or fortified foods containing at least 400 microg/d folic acid for the prevention of neural tubes defects. Concerns exist about the adverse effects of folic acid on zinc status. ⋯ Folic acid supplementation does not reduce plasma zinc concentrations in women of childbearing age.
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We assessed the bioelectrical impedance vector distribution in a sample of healthy infants in the first year of life, which is not available in literature. ⋯ We obtained an estimate of mean impedance vector in a sample of healthy infants in the first year of life and calculated the bivariate values for an individual vector (95%, 75%, and 50% tolerance ellipses).
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This paper provides a review of research on partially hydrolyzed guar gum that is relevant to clinical nutrition practice. ⋯ The ease of use of PHGG and its clinical effectiveness make it a good choice in clinical nutrition practice.
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We measured the in vitro effects of mercuric chloride (Hg2+) and selenite (Se4+) on hepatic 2-thiobarbituric acid-reactive substances (TBARS) and non-protein sulfhydryl (NPSH) levels of rats fed diets enriched with polyunsaturated or saturated fatty acids with and without cholesterol. ⋯ Together these results indicated that the protective effect of Se4+ against mercury-induced lipid peroxidation depends on dietary fat saturation.
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Epidemiologic studies have suggested that high consumption of green tea protects against the development of chronic active gastritis and decreases the risk of stomach cancer. The effect of green tea on the intestinal mucosa was not studied previously, so we examined the effects of green tea on the intestinal mucosa of fasting rats in a controlled experimental setting. ⋯ The mucosal and villous atrophy induced by fasting was reverted to normal by the ingestion of green tea and, to a lesser extent, vitamin E. Black tea ingestion had no effect. In addition, ingestion of black tea, green tea, and vitamin E before fasting protected the intestinal mucosa against atrophy.