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March 21, 2025
Metchnikoff - Quilo de Ciencia podcast - Cienciaes.com

La teoría del envejecimiento propuesta por el zoólogo ruso Ilya Metchnikoff (1845-1916) alcanzó gran popularidad a comienzos del siglo XX. Postulaba dicha teoría que las enfermedades de la edad avanzada, y el envejecimiento mismo, son consecuencia del efecto nocivo de las sustancias tóxicas producidas por las bacterias que colonizan nuestro intestino. Metchnikoff propuso por tanto el consumo de yogur como método para conseguir una flora intestinal favorable y alcanzar una larga y sana. Pero ninguna de las premisas que le sirvieron de base para edificar su teoría ha tenido confirmación. El yogur, y otros productos lácteos semejantes, son sin duda alimentos excelentes; pero no hay prueba convincente de su capacidad para prolongar la vida humana.

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