People with blood type B may need to be a little more vigilant than their peers about the lifestyle factors associated with diabetes risk.
According to a 2024 umbrella review, people with blood type B – either positive or negative – had a slightly higher risk of developing type 2 diabetes than people with non-B blood types.
How much higher? About 28 percent, on average. That's not huge, but it may be significant enough to tip the scales if other risk factors are involved.
"Numerous systematic reviews with meta-analyses have been published, which explored correlations between ABO and Rhesus blood groups with various health outcomes.
"However, to date, the association between these blood groups and human health outcomes remains controversial," wrote a team led by epidemiologist Fang-Hua Liu of Shengjing Hospital of China Medical University.
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