Most people reach their satiation point with sugar well within one pound of sucrose a week. I seriously doubt she eats one pound of sugar a week unless her body is already maintaining a weight of 500 pounds, and apparently, that's not happening.
Do you know what five pounds of pure sugar a week is likely to do to a person of normal weight? I'm just guessing myself. Start with pancreatitis, which will likely shut down any craving you have for sugar, but if it doesn't, than the consequences get worse. I would guess it would probably cause stomach ulcers, which also kill your desire for more sugar. If that doesn't happen, you'll probably go hyperglycemic sometime before you reach two pounds, even if you have no history of diabetes, because your pancreatic islet cells will have exhausted their ability to produce insulin. That's just a start. I can't guess about what the direct neurological effects would be. And the high sugar over a week will likely cause acute inflammation within the arteries from the glucose irritating them, making you vulnerable to a cardiac infarction or occlusion along with other circulatory problems. Then, it might destabilize your heart probably causing tachycardia or even sinus arrhythmia, so don't try it without defibrillators close at hand.
Are you referring to a smaller amount of sugar? Anything is poison in a high enough dosage. By a lot of sugar in somebody's diet, I meant something short of a suicide attempt.
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