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Ulo/Nzu and Pregnancy: 15 Reasons Pregnant women should not eat Nzu (Calabash chalk) - Nigerian Health Blog
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Health Department warns pregnant women against morning sickness remedy containing lead, arsenic - silive.com
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Calabash chalk is a naturally occurring mineral consumed by members of some Nigerian communities for pleasure and by pr… | Clay, Calabash, Morning sickness remedies
![Five of the Calabash chalk samples investigated in our study. These... | Download Scientific Diagram Five of the Calabash chalk samples investigated in our study. These... | Download Scientific Diagram](https://www.researchgate.net/publication/234106213/figure/fig10/AS:342671706083333@1458710709644/Five-of-the-Calabash-chalk-samples-investigated-in-our-study-These-materials-are-shales.png)