A Spanish study reveals that participants in a 21-year program using at-home fecal immunochemical tests (FIT) experienced a 50% reduction in colon cancer mortality among adults aged 50-69. The non-invasive test, which requires no preparation and can be done at home, involves collecting a stool sample for lab analysis. Researchers analyzed data from 2.2 million people, highlighting the FIT's effectiveness compared to traditional methods like colonoscopies. While FITs are less costly and more accessible, they are not a replacement for colonoscopies, which can detect and remove precancerous polyps. The study emphasizes that early detection through affordable screening options like FITs can significantly reduce cancer-related deaths, particularly for those unable to access regular colonoscopies.