>through the day Means the body always has some available. Or, in other words, it does not get a chance to burn fat. And eventually the mechanism itself degr

>through the day Means the body always has some available. Or, in other words, it does not get a chance to burn fat. And eventually the mechanism itself degrades, becoming unable to burn fat. Keep in mind that our always-available food supply situation is very recent in our species history. Intermittent fasting is what the human body has evolved to do, and how we can get our health back.