science

The Sewer Knows What You Ate

NYT > Science·July 20, 2026

Scientists are utilizing wastewater testing to gain insights into the eating habits of communities, building on the approach's success as a Covid-19 warning system during the pandemic. By analyzing wastewater, researchers can identify the presence of various food compounds and track dietary trends over time. This innovative method allows for the collection of data on community-level food consumption patterns, which can inform public health initiatives and policies. The approach has the potential to provide valuable information on dietary habits and their impact on public health.

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