Background: The consumption of dietary supplements (DS) has increased by\nalmost 10% last decade. This trend may be true also for pregnant women;\nhowever, it was reported that pregnant women do not sufficient and correct\nknowledge on nutritional needs during pregnancy. Thus, we here attempted\nto determine the French situation of how French pregnant women take DS\nand its social-clinical significance using questionnaires, with special reference\nto vitamin D (VD) overtaking. Materials and Methods: A prospective multi-\ncentric study was performed in three maternities in Paris. One hundred-fifty\nquestionnaires were administered to pregnant women by midwife. Results:\nThirty-four patients were interviewed at the maternity ward of the Deaconesses,\n61 at the Pitie-Salpetriere and 55 at Armand Trousseau. During pregnancy,\nDS started mainly during the first trimester. Frequently, doctors initially\nprescribe them and women tended to continue to take them thereafter.\nPossible VD overdosage was observed. Conclusion: We here characterized\nFrench pregnant women in terms of DS during pregnancy and also, to our\nknowledge, for the first time emphasized the risk of vitamin D overdose during\npregnancy in France. However, since the cumulative dose throughout the\npregnancy was not determined here, definite conclusion of whether women really\ntake overdose of this supplement may not be made. Women of higher socio-\nprofessional society tended to consume more DS during pregnancy, and,\nthus, further monitoring may be needed especially to this fraction of pregnant\nwomen.
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