Belly fat, or more specifically visceral adipose tissue which also clusters around the internal organs, is considered to be an indicator of type 2 in some Asian populations but not all researchers are in agreement. The subject is still being researched for other ethnic groups.
Some examples:
Visceral Adiposity and Risk of Type 2 Diabetes A prospective study among Japanese Americans (Medscape requires registration. It is free and spam-free)
Conclusions: Greater visceral adiposity precedes the development of type 2 diabetes in Japanese Americans and demonstrates an effect independent of fasting insulin, insulin secretion, glycemia, total and regional adiposity, and family history of diabetes.
Discussion: VAT was highest among Filipinas despite similar BMI and waist circumference as whites. BMI and waist circumference were weaker estimates of VAT in Filipino and African-American women than in whites. Type 2 diabetes prevalence was highest among Filipino women at every level of VAT, but VAT did not explain their elevated type 2 diabetes risk.
Role of A Critical Visceral Adipose Tissue Threshold (CVATT) In Metabolic Syndrome
An interesting article; some of his views are still controversial but well worth reading.
Cheers, Alan, T2, Australia
Everything in Moderation - Except laughter