Therefore, it was not possible to compare the prevalence we found in the studied population with any other existing national data. Our study is the first research in Morocco that investigates the hypovitaminosis D among the school-aged group. (2009) has reported that vitamin D deficiency is very common in healthy adult urban women during the summer season, and that the lack of sun exposure as well as the veiled clothing style are the most important factors that triggered the hypovitaminosis D. To date no study in Morocco has examined the 25(OH)D status in school-aged children. Les observations révèlent une carence en vitamine D (<50 nmol/L) en hiver chez les enfants d’âge scolaire dans le Maroc rural la consommation de lait enrichi semble améliorer la situation comparativement à la consommation de lait non enrichi. À la fin de l’étude, la prévalence de vitamine D <50 nmol/L dans le groupe enrichi est abaissée significativement de 37,6 %. Au début, 47,5 % des enfants présentent une concentration de 25-hydroxyvitamine D inférieure à 50 nmol/L. La moyenne de la masse corporelle, de la stature et de la cote z de l’indice de masse corporelle des participants est de 22,8 ± 2,6 kg, 121,5 ± 5,2 cm et –0,2 ± 0,6 kg/m 2 respectivement. On prélève des échantillons de sang 3 fois (au début, puis après 4 et 9 mois). Des enfants âgés de 7 à 9 ans ( n = 239, 49 % de filles, 51 % de garçons) participant à cette étude longitudinale à double insu sont divisés en deux groupes : un groupe enrichi recevant quotidiennement 200 mL de lait pasteurisé à ultra-haute température (« UHT ») et enrichi de 3 μg de vitamine D 3 et un groupe non enrichi recevant 200 mL de lait UHT non enrichi, mais renfermant naturellement de la vitamine D 3 (environ 1,5 μg).
Cette étude a pour objectif de déterminer l’effet de la consommation de lait enrichi en multivitamines sur le statut en vitamine D chez des enfants résidant dans la région montagneuse du Maroc. La carence en vitamine D est un problème de santé dans les pays développés et en émergence. These results reveal prevalent vitamin D insufficiency (<50 nmol/L) during winter among rural Moroccan school-aged children, which seems to be better improved by consuming the fortified milk instead of the nonfortified one. At the end of the study the prevalence of vitamin D <50 nmol/L decreased significantly by 37.6% in the fortified group. At baseline, 47.5% of children had a concentration of 25-hydroxyvitamin D below 50 nmol/L. The average weight, height, and z score of body mass index for age of participants were 22.8 ± 2.6 kg, 121.5 ± 5.2 cm, and –0.2 ± 0.6 kg/m 2, respectively. Blood samples were collected 3 times (at baseline, then at the fourth and ninth months).
Children aged 7 to 9 years ( n = 239 49% of girls vs 51% of boys) participated in a double-blind longitudinal study, where they were divided in 2 groups: a fortified group that received daily 200 mL of fortified ultra-high-temperature (UHT) milk enriched with 3 μg of vitamin D 3 and a nonfortified group that received 200 mL of nonfortified UHT milk with a natural abundance of vitamin D 3 (about 1.5 μg). The aim of this study was to determine the effect of multi-vitamin fortified milk consumption on vitamin D status among children living in the mountainous region of Morocco. Vitamin D deficiency is a health problem in both developed and developing countries.