Body mass index a bigger factor in type 2 diabetes than genetics

Over 225,000 people in Ireland have diabetes, most of whom have type 2 diabetes. A new study has found body mass index is a much bigger indicator of type 2 diabetes than genetics. File Picture.

Body mass index is a much bigger risk factor for type 2 diabetes than genetics, a new study of almost half a million people has suggested.

Most cases of the disease could either be prevented or reversed if someone's BMI was kept below their personal cut-off point at which abnormal blood sugar levels are triggered, an expert behind the study said.