We all know about hormone-like compounds in plastic water bottles. Chemicals such as BPA, PCBs and phthalates have been linked to conditions like endocrine disruption and cancer. But few realize that these compounds are also in toilet paper! A 2004 study published in the UK found very high concentrations of these xenoestrogens in toilet paper. Of course, you don’t drink toilet paper, but who knows whether the compounds are absorbed through the skin. And the study found that these estrogen-pretenders do pass into wastewater and warned that toilet paper “should not be mixed with biological waste e.g. for co-composting or co-fermentation in order to derive organic fertilizers” (Gehring M and others in Popov V and others, eds. Waste Management and the Environment II. Southampton, UK, 2004).