A dedicated nutritional animal model to demonstrate that your prebiotics impact metabolic parameters in adapted animal models i.e. early (4 weeks high fat feeding with glucose intolerance and impaired glucose-stimulated insulin secretion) or established (14 weeks high fat feeding with insulin resistance)
Mouse fed a control (chow-ctrl) or high fat diet (HF-ctrl) or high fat diet + fermentable diatary fiber oligofructose (HF- OFS) for 4 weeks (impaired insulin secretion) or 14 weeks (impaired insulin action).
Cani et al., Diabetes 55:1484-1490, 2006 ; Cani et al., Diabetologia 50: 2374-2383, 2007