My mother, a nurse, has told me about a similar, but far more lethal, mistake that her patients often make. People who have diabetes need to avoid sugary foods, and their doctors and nurses try to teach them how to do this. But these people often buy foods that are labeled ‘Low-Fat’, thinking that it will be healthier. This is exactly wrong. Processed foods with a ‘Low-Fat’ label will almost always contain extra sugar to make up for the loss of the fat. Diabetic people should be eating foods with more fat and less sugar, but a belief that ‘Low-Fat’ means ‘healthy’ causes these patients to harm themselves.