Womens Vitamin
Posted by on 05 Jan 2009 | Tagged as: Uncategorized
VITAMIN D could improve fertility in some women, a study has found. The researchers, led by a group from Yale University School of Medicine, said those with ovulation problems or PCOS were far more likely to be lacking in vitamin D than the other women. Vitamin D, found in oily fish and eggs, helped to restore regular periods, thereby boosting the chances of conception.
This study, performed in Bonn, Germany, evaluated the effect of four weeks of supplementation with folic acid (400 [micro] g/day), vitamin [B.sub.6], (2 mg/day), or both on homocysteine levels in 106 healthy young women. As compared to women receiving placebo, those receiving folic acid, with or without vitamin [B.sub.6], showed a significant reduction in plasma homocysteine levels (17% in the group receiving both vitamins, 11.5% in the group receiving folic acid alone, with no significant difference between these two groups). Vitamin [B.sub.6], administered alone, had no significant effect on homocysteine levels. The results of this study indicate that supplementation with physiologic doses of folic acid can reduce homocysteine levels within the normal range. Since even moderate elevations in homocysteine concentrations are a risk factor for cardiovascular disease, the reduction in homocysteine produced by supplementation might have long-term health benefits. Additional studies are needed to determine whether similar effects on homocysteine can be produced with dietary folate rather than folic acid supplements. Jutta Dierkes, Manfred Kroesen, and Klaus Pietrzik, Folic Acid and Vitamin [B.sub.6] Supplementation and Plasma Homocysteine Concentrations in Healthy Young Women, International J Vitamin Nutrition Research 68(2):98-103 (1998) [Correspondence: Professor Klaus Pietrzik, Institute of Nutritional Science, Department of Pathophysiology of Human Nutrition, University of Bonn, Endenicher Allee 11-13, 53115 Bonn, Germany]
Some epidemiologic studies have associated higher intakes of the antioxidant nutrients, especially vitamin E, with reduced risks of coronary heart disease. In some studies, this association has been observed for dietary vitamin E, but in other instances, the relationship was seen only in persons taking high doses of vitamin E as supplements. Protective effects of the other antioxidant nutrients - vitamin C and carotenoids - have also been observed in some epidemiological studies, but not in others.In the study population as a whole, there appeared to be a trend toward reduced coronary risk with higher vitamin E intake, but it was not statistically significant. Among women who did not take vitamin supplements, dietary vitamin E intake did show a significant inverse association with coronary heart disease risk. Women in the highest quintile of vitamin E intake had less than half the risk of death from coronary heart disease of women in the lowest quintile. Foods associated with reduced risk included margarine, nuts and seeds, and mayonnaise and creamy salad dressings. Intakes of vitamin A, vitamin C, and supplementary vitamin E did not appear to be associated with the risk of death from coronary disease.These findings suggest that vitamin E intake may be protective against coronary heart disease in postmenopausal women and that such women can lower their risk without using vitamin supplements. However, the authors could not rule out the possibility that vitamin E consumed in food might be a marker for other dietary factors associated with coronary risk. The lack of effect of vitamin E in supplements should be interpreted with caution because information on the duration of supplement use was not available for this cohort and because relatively few women used high-dose supplements of vitamin E.