I came across this free full text article which concludes:
Whey protein… enhances the release of several hormones… that lead to reduced food intake and increased satiety… The ability to amplify insulin secretion by whey protein may be safer than the commonly used therapeutic agents. The induced satiety, increased thermogenesis and comparable magnitude of blood glucose reduction to pharmaceutical treatment support the application of whey protein in the therapeutic treatment for the management of Type 2 diabetes and obesity.