Red meat sugar molecule linked to higher type-2 diabetes risk, study suggests

An observational analysis of the NutriNet-Santé cohort, which followed almost 90,000 adults for seven years, identified a correlation between dietary intake of Neu5Gc—a sugar molecule found only in red meat—and elevated type-2 diabetes risk. Individuals with the highest Neu5Gc consumption exhibited a 63 % greater incidence of the disease than those with the lowest intake, although the link became non-significant after controlling for overall red-meat consumption.

Researchers propose that chronic low-grade inflammation triggered by immune reactions to Neu5Gc may underlie the association. The results were unveiled at the European diabetes researchers’ meeting in Milan and have not yet undergone peer review. Professor Anne-Maria Pajari of the University of Helsinki noted the need for replication in other populations and for studies measuring inflammatory markers directly. A related intervention trial in Finland found no difference in low-grade inflammation between high red-meat and legume diets, highlighting uncertainty about the specific role of Neu5Gc.