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Prevalence of geophagy and knowledge about its health effects among native Sub-Saharan Africa, Caribbean and South America healthy adults living in France.

Geophagy is widespread among women from Sub-Saharan Africa, South America and the Caribbean and may persist in western countries. This practice may be associated with adverse effects such as anaemia, constipation or intestinal occlusion. We aimed to determine the prevalence of geophagy and the level of knowledge about its health effects among healthy adults originating from these countries and attending a travel medicine and international vaccination consultation in France. Among 101 travellers enrolled in the study, 83 (82.1%) were born in Sub-Saharan Africa and 13 (12.8%) in South America or the Caribbean. The mean duration of residence in France was 15.6 ± 10.4 years. Previous or current geophagy was present in 42 travellers [previous geophagy in 31 (30.7%) and current consumption in 11 (10.9%)]; 38 (90.5%) were women. The rate of awareness of harmful effects of geophagy as the risk of iron-deficient anaemia (18.8%) and soil-transmitted intestinal parasitic infections (11.9%) was low overall. Women with previous or current geophagy more often had history of iron therapy compared to those who never consumed, both during pregnancy (50.0 versus 14.3%; p = 0.0009) and outside pregnancy (47.4 versus 2.8%; p < 0.0001). Despite a long period of residence in France, geophagy was still a current practice among 10.9% of Sub-Saharan, South American and Caribbean travellers, who are poorly informed of its harmful effects. Therefore, specific information tailored to Sub-Saharan, South American and Caribbean about the risks of geophagy should be implemented in western countries. Level of evidence Level V, descriptive cross-sectional survey.

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