Ever wondered why poop floats? Turns out it’s not because of fat, like you may have heard.

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Sources:
https://medlineplus.gov/ency/article/003128.htm
http://www.nejm.org/doi/citedby/10.1056/NEJM197205042861804#t=articleTop
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1306982/pdf/westjmed00158-0072.pdf
http://healthtools.aarp.org/health/stools-floating
https://www.ncbi.nlm.nih.gov/pubmed/25966670
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3895606/
http://www.nature.com/ajgsup/journal/v1/n1/full/ajgsup20126a.html
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