Is there such a thing as being a "healthy weight" but still at high risk for type 2 diabetes?

Yes. BMI-defined "healthy weight" doesn't account for family history, ethnicity, where fat is distributed, or other risk factors that Diabetes Canada identifies as significant regardless of weight category. Someone can be within a normal BMI range and still carry meaningful risk if other factors are present, which is part of why risk assessment tools look at more than weight alone. References: https://obesitycanada.ca/healthcare-professionals/adult-clinical-practice-guideline/ https://guidelines.diabetes.ca/GuideLines/media/Docs/Quick%20Reference%20Guide/2024-CPG-Quick-Reference-Guide.pdf