[overgard]

I'm referring to insulin resistance. Chronic high levels of insulin will result in cells not responding to the signal from insulin to store blood sugar (because they've already saturated their glucose storage capacity), which will result in the pancreas releasing more insulin to compensate. The more insulin resistant you become, the more your pancreas ramps up its insulin levels (to diminishing returns, unfortunately), until it reaches the point where your pancreas can't make enough insulin to control blood sugar. (Type 2 diabetes). Your body can't/won't burn fat when insulin levels are high, and the insulin resistance results in insulin never dropping an appropriate amount, which results in fat not being burned despite the meal not being particularly egregious.