Objective: Calabash chalk (Nzu) is a geophagic material, consumed by many pregnant women and breastfeeding mothers as remedy for morning sickness in most African countries. The present study aims to evaluate the impact of Calabash chalk consumption in pregnant Wistar rats.
Materials And Methods: Median lethal dose of Calabash chalk was initially determined in Wistar rats to be >5000 mg/kg po using Lorke's method.