Scientific studies reveal new data on pharmaceutical pollution and gut health

A new scientific study conducted in Greece challenges previous estimates regarding the impact of pharmaceuticals on urban wastewater. Research involving the National Organization for Medicines, the National Hellenic Pharmaceutical Federation, and the Hellenic Association of Pharmaceutical Industries, in collaboration with the National and Kapodistrian University of Athens, found that pharmaceutical substances account for only 7% of the total toxic load in treated wastewater. This is a significant deviation from the 66% estimate previously provided by the European Commission in its impact assessment for the revision of the Urban Wastewater Treatment Directive (UWWTD).

Separately, research published in the journal Nature highlights the risks of combining high sugar intake with antibiotic treatment. A study involving patients at institutions such as NYU Langone Health and Memorial Sloan Kettering found that increased sugar consumption can exacerbate the disruption of the gut microbiome caused by antibiotics. Specifically, for every additional 100 grams of sugar consumed within 48 hours before treatment, there was a 21% reduction in alpha diversity, a key indicator of bacterial species variety. This combination was also linked to an increase in Enterococcus faecium, a bacterium associated with difficult-to-treat infections.