I'd agree this isn't a complete list of foods, also low carb foods isn't totally right for diabetics. Low GI foods are for diabetics. In your friend's case, she has a very high blood sugar, but still feeling thirsty and starving. Water and green tea are the best drinks. The thirsty and starving feeling come from high blood sugar, if you let your friend eat more, her blood sugar will go up, and she will feel more starving. So the doctors have to find a way to lower down the blood sugar immediately. I think you friend didn't die of starving, she dies of complications of diabetes.