Researchers show which blood group has the lowest cancer risk

June 24, 2026 by youssef

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Having blood group O does not guarantee protection — it only suggests a slightly lower statistical risk in some studies. Lifestyle choices, screenings, and family genetics remain far more powerful predictors of cancer.

In short: current evidence points to blood group O as having the lowest average cancer risk, but maintaining healthy habits and regular medical checkups matter far more for prevention.