You'll remember that insulin's job is to convert all your excess carbohydrate into stores of body fat. In a normally functioning body, fatty acids and ketones are readily converted from fat tissue to fuel. But in overweight people, high insulin levels prevent this from happening.
Most obese people become so adept at releasing insulin that their blood is never really free of it and they're never able to use up their fat stores. By primarily burning fat instead of carbohydrates, lipolysis breaks the cycle of excess insulin and resultant stored fat. So by following a fat-containing, controlled carbohydrate regimen, you bypass the process of converting large amounts of carbohydrate into glucose. When your carbohydrate intake drops low enough to induce fat burning, abnormal insulin levels return to normal-perhaps for the first time in years or decades.'-'
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