Researchers show which blood group has the lowest cancer risk

Type O: a protective effect?

Conversely, type O appears to be associated with a lower risk of these cancers. Researchers believe this may be related to a less pronounced inflammatory response to bacterial infections.

Does this mean that having type O means you're completely protected from cancer? Of course not. However, these findings suggest that our genetics, including our blood type, can have a subtle influence on our health.