Thanks to our modern lifestyle, with more and more time spent sitting down in front of computersthan ever before, the number of overweight people is at a new high. As people frantically search for asolution to this problem, they often try some of the popular fad diets being offered. Many people see faddiets as innocuous ways of losing weight, and they are grateful to have them. Unfortunately, not onlydon’t fad diets usually do the trick, they can actually be dangerous for your health.Although permanent weight loss is the goal, few are able to achieve it. Experts estimate that 95percent of dieters return to their starting weight, or even add weight. While the reckless use of fad dietscan bring some initial results, long-term results are very rare.Nonetheless, people who are fed up with the difficulties of changing their eating habits often turnto fad diets. Rather than being moderate, fad diets involve extreme dietary changes. They advise eatingonly one type of food, or they prohibit other types of foods entirely. This results in a situation where aperson’s body doesn’t get all the vitamins and other things that it needs to stay healthy.One popular fad diet recommends eating lots of meat and animal products, while nearlyeliminating carbohydrates. A scientific study from Britain found that this diet is very high in fat.According to the study, the increase of damaging fats in the blood can lead to heart disease and, inextreme cases, kidney failure. Furthermore, diets that are too low in carbohydrates can cause the bodyto use its own muscle for energy. The less muscle you have, the less food you use up, and the result isslower weight loss.Veteran dieters may well ask at this point, “What is the ideal diet?” Well, to some extent, itdepends on the individual. A United States government agency has determined that to change your eatinghabits requires changing your psychology of eating, and everyone has a different psychology. That beingsaid, the British study quoted above recommends a diet that is high in carbohydrates and high in fiber,with portions of fatty foods kept low. According to the study, such a diet is the best for people who wantto stay healthy, lose weight, and keep that weight off. And, any dieting program is best undertaken witha doctor’s supervision.Question 11: What is the author’s main point?(A) Reckless fad dieting probably takes weight off the fastest.(B) Most people shouldn’t try to lose weight.(C) High-protein diets can make you sick.(D) Fad diets are ineffective and unsafe; high-carbohydrate, low-fat diets are best.Question 12: According to the passage, why are there more overweight people nowadays?(A) They are using fad diets.(B) They spend a lot of time in front of computers.(C) They have heart disease.(D) They are eating more protein than ever before.Question 13: After losing weight by dieting, what usually happens to people?(A) They have kidney failure. (C) They keep the weight off.
(B) They gain the weight back again. (D) The have less muscle
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