Umm... this study used water as the placebo? Shouldn't they at least have used oatmeal? As it is, the study compares eating vs not-eating, rather than eating hi

Umm... this study used water as the placebo? Shouldn't they at least have used oatmeal? As it is, the study compares eating vs not-eating, rather than eating high-GI vs low-GI foods.