Investigation
Can an alkaline diet prevent disease by stopping the body from becoming acidic?
Three 2025–2026 same-clinic retrospective observational publications report survival correlations with urinary pH in selected cancer cohorts, including 203 NSCLC and 129 colorectal patients. Likely overlapping clinic/date cohorts, other anticancer care, nonrandom selection and no blood or tumor-pH demonstration prevent an inference that diet alkalizes blood or treats cancer.