No scientific studies have been done with enough stats to accept this hypothesis. Be careful out there. Liposuction may improve the diabetes but I really do not know. Regards.
Liposuction cannot be done on the fat INSIDE the belly (IE VISCERAL / Omentum fat). It can only be done on the fat under the skin. Obesity associated diabetes is NOT a medically recognized indication for liposuction and liposuction is NOT a treatment for obesity. Your best bet is an aggressive, doctor supervised regimen of diet and exercise.