Researchers show which blood group has the lowest cancer risk

It is crucial to remember that these are associations, not proof of causation. Your blood type is just one piece of a very large puzzle. Other factors that strongly influence cancer development include:

• Lifestyle: Diet, physical activity, and smoking habits.

• Infections: Exposure to certain bacteria, like H. pylori.

• Environment: External factors and pollutants.

Additionally, the link depends on the specific cancer. For instance, large studies on breast cancer have found no meaningful relationship with ABO blood groups.

The Bottom Line

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

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