# The Sewer Knows What You Ate

- Published: 2026-07-20T19:00:06Z
- Updated: 2026-07-22T03:01:10Z
- Section: Science & Environment
- Language: English (en)
- Source: The New York Times — https://www.nytimes.com/2026/07/20/science/sewer-diet-research.html
- Tags: The New York Times · Science
- Canonical: https://www.khabarestan.com/en/news/%D8%A8%D8%B1%D8%B1%D8%B3%DB%8C-%D8%B9%D8%A7%D8%AF%D8%A7%D8%AA-%D8%BA%D8%B0%D8%A7%DB%8C%DB%8C-%D8%A7%D8%B2-%D8%B7%D8%B1%DB%8C%D9%82-%D8%AA%D8%AC%D8%B2%DB%8C%D9%87-%D9%88-%D8%AA%D8%AD%D9%84%DB%8C%D9%84-%D9%81%D8%A7%D8%B6%D9%84%D8%A7%D8%A8-%D8%B4%D9%87%D8%B1%DB%8C

During the Covid-19 pandemic, wastewater testing became a virus warning system. Now, scientists are using the approach to understand how communities eat.

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