270 disease scenarios were examined: B blood group risk was revealed in diabetes

In the world of epidemiology, diabetes, hematology and public health, remarkable scientific data has been shared regarding the effects of blood types on susceptibility to chronic diseases. Epidemiologist Fang-Hua Liu and his team from Shengjing Hospital of China Medical University conducted a massive data synthesis by examining 51 systematic reviews with meta-analyses published in the medical literature to date. In the study published in the journal BMC Medicine, possible relationships between blood groups and 270 different health outcomes were subjected to statistical stress tests.

270 DISEASE SCENARIOS ELIMINATED: THE ONLY EVIDENCE WAS IN BLOOD GROUP B

Scientists; He examined data covering thousands of cases in international databases such as PubMed, Web of Science, Embase and Scopus. After strict screening processes based on risks of bias, small sampling errors and reproducibility criteria, the only statistically definitive link between blood type and diseases was identified.

The data proved that individuals with B rh positive or B rh negative blood types were on average 28 percent more likely to develop Type 2 diabetes compared to those with blood types other than B (A, 0, AB).

NUTRITION AND LIFESTYLE ARE MUCH MORE CRITICAL THAN BLOOD TYPE

Researchers emphasize that the 28 percent increased risk detected in blood group B should not be ignored, but remains a secondary factor besides daily lifestyle factors.

According to medical data, consuming just 50 grams of processed meat a day increases the risk of Type 2 diabetes by 37 percent, while leading a sedentary life increases the risk by 112 percent. Obesity and overweight continue to be the key triggers in the development of diabetes.

THE GUT MICROBIOME AND BIOLOGICAL SHIELD ARE BEING INVESTIGATED

It is not yet fully understood how the antigens on the red blood cell surface, which determine the blood group, trigger diabetes. However, additional biochemistry studies conducted in 2025 and 2026 indicate that the intestinal microbiome structure of people with blood group B may affect insulin resistance.

Experts remind that blood group is an unchangeable biological parameter; He states that individuals with blood group B can completely eliminate this risk if they pay attention to their nutrition patterns, exercise routines and weight control.