Reading Comprehension

In terms of its prevalence, obesity is the leading disease in the United States. There is no universally accepted standard for obesity, defined generally as an excess of adipose tissue, but a common rule of thumb classifies people who are more than 20 percent above their desirable weight as obese. By this measure, 30 percent of men and 40 percent of women in America are obese. Although studies show that few of these people will ever recover fully and permanently from the disease, the incidence of obesity in future generations can be reduced.

Adipose tissue is a triumph of evolution. Fat yields 9 calories per gram, while protein, like carbohydrates, yields only 4 calories per gram. Fat also contains much less water than protein does. Therefore, fat is much more efficient for storing excess energy than is protein. Primitive humans, with uncertain food sources, had a great need for excess fat, and their bodies adapted accordingly. Modern humans, with a predictable food supply and a sedentary life-style, are burdened by this vestige of evolution. Although they need some adipose tissue to provide insulation and protect internal organs from injury, modern humans need much less than their primitive ancestors did.

In an attempt to shed excess adipose tissue, many Americans turn from one fad diet to another, and a billion-dollar diet industry has grown up to aid them in their efforts. Nevertheless, the five-year cure rate for obesity is very low. In fact, by comparison, cancer is more curable. The reasons for this are psychological as well as physiological.
From a physical standpoint, losing a pound or two a week for a few weeks is not difficult because most of the loss is in the form of protein and water, and protein carries four times its weight in water. However, protein is also the only source of nitrogen in the body, and when the body loses too much nitrogen, it acts to correct the imbalance by excreting less nitrogen than it takes in. Hence beyond a certain point additional weight loss must come from adipose tissue, which, because of its compactness, takes longer to shed. The body's tendency to return to nitrogen balance and to protect its energy reserves can be so strong that dieters may stop losing or even gain weight while still expending more calories than they ingest. As a result, they frequently suffer not only from hunger, weakness, and a decreased metabolic rate, but also from depression and inactivity, all of which lead them to abandon their diets. Probably because of numerous psychological factors as well as physiological factors such as increased lipid synthesis, they then tend to regain weight rapidly.
While vigorous attempts to reduce obesity in America should be aimed at all affected, the most successful efforts are likely to be those directed toward children. If the advertising and food industries stop trying to sell high-calorie, nutritionally deficient food to children, and if parents understand that the feeding patterns they impose on their children can determine the adolescent and adult eating habits those children will develop, the future generation may not be as fat as ours is.

All of the following statements about protein are supported by the passage EXCEPT:
(A) Gram for gram, foods that are high in protein are lower in calories than foods that are high in fat.
(B) The body gets all of its nitrogen from protein.
(C) Nine grams of protein yield the same number of calories as 4 grams of fat.
(D) Protein is not converted into adipose tissue.
(E) Five grams of protein carry 20 grams of water.

The passage contains information that answers which of the following questions?
(A) What percent of the total population in the United States is obese?
(B) What psychological factors cause people to gain weight rapidly once they go off a diet?
(C) What function does nitrogen perform in the body?
(D) How is an individual's desirable eight determined?
(E) If a snack bar contains 130 calories and 4 grams of fat, what percentage of the calories in the bar come from fat

Which of the following, if it could be demonstrated, would most strengthen the claim that the feeding patterns of children "can determine the adolescent and adult eating habits those children will develop" (lines 55-56)?
(A) The incidence of obesity in children whose parents are both obese is 80 percent.
(B) Thirty-six percent of infants who are obese during their first half year of life are also overweight between the ages of 20 and 36.
(C) Excessive weight gain during the teen years can set the stage for a lifetime battle against the bulge.
(D) Up to 80 percent of youngsters who are fat as 5-year-olds end up fat as adults.
(E) The average child witnesses more than 15,000 commercials a year for snacks,candy, and soft drinks laden with fat, sugar, and calories.

greenwich wrote:In terms of its prevalence, obesity is the leading disease in the United States. There is no universally accepted standard for obesity, defined generally as an excess of adipose tissue, but a common rule of thumb classifies people who are more than 20 percent above their desirable weight as obese. By this measure, 30 percent of men and 40 percent of women in America are obese. Although studies show that few of these people will ever recover fully and permanently from the disease, the incidence of obesity in future generations can be reduced.

Adipose tissue is a triumph of evolution. Fat yields 9 calories per gram, while protein, like carbohydrates, yields only 4 calories per gram. Fat also contains much less water than protein does. Therefore, fat is much more efficient for storing excess energy than is protein. Primitive humans, with uncertain food sources, had a great need for excess fat, and their bodies adapted accordingly. Modern humans, with a predictable food supply and a sedentary life-style, are burdened by this vestige of evolution. Although they need some adipose tissue to provide insulation and protect internal organs from injury, modern humans need much less than their primitive ancestors did.

In an attempt to shed excess adipose tissue, many Americans turn from one fad diet to another, and a billion-dollar diet industry has grown up to aid them in their efforts. Nevertheless, the five-year cure rate for obesity is very low. In fact, by comparison, cancer is more curable. The reasons for this are psychological as well as physiological.
From a physical standpoint, losing a pound or two a week for a few weeks is not difficult because most of the loss is in the form of protein and water, and protein carries four times its weight in water. However, protein is also the only source of nitrogen in the body, and when the body loses too much nitrogen, it acts to correct the imbalance by excreting less nitrogen than it takes in. Hence beyond a certain point additional weight loss must come from adipose tissue, which, because of its compactness, takes longer to shed. The body's tendency to return to nitrogen balance and to protect its energy reserves can be so strong that dieters may stop losing or even gain weight while still expending more calories than they ingest. As a result, they frequently suffer not only from hunger, weakness, and a decreased metabolic rate, but also from depression and inactivity, all of which lead them to abandon their diets. Probably because of numerous psychological factors as well as physiological factors such as increased lipid synthesis, they then tend to regain weight rapidly.
While vigorous attempts to reduce obesity in America should be aimed at all affected, the most successful efforts are likely to be those directed toward children. If the advertising and food industries stop trying to sell high-calorie, nutritionally deficient food to children, and if parents understand that the feeding patterns they impose on their children can determine the adolescent and adult eating habits those children will develop, the future generation may not be as fat as ours is.

All of the following statements about protein are supported by the passage EXCEPT:
(A) Gram for gram, foods that are high in protein are lower in calories than foods that are high in fat.
(B) The body gets all of its nitrogen from protein.
(C) Nine grams of protein yield the same number of calories as 4 grams of fat.
(D) Protein is not converted into adipose tissue.
(E) Five grams of protein carry 20 grams of water.

The passage contains information that answers which of the following questions?
(A) What percent of the total population in the United States is obese?
(B) What psychological factors cause people to gain weight rapidly once they go off a diet?
(C) What function does nitrogen perform in the body?
(D) How is an individual's desirable eight determined?
(E) If a snack bar contains 130 calories and 4 grams of fat, what percentage of the calories in the bar come from fat

Which of the following, if it could be demonstrated, would most strengthen the claim that the feeding patterns of children "can determine the adolescent and adult eating habits those children will develop" (lines 55-56)?
(A) The incidence of obesity in children whose parents are both obese is 80 percent.
(B) Thirty-six percent of infants who are obese during their first half year of life are also overweight between the ages of 20 and 36.
(C) Excessive weight gain during the teen years can set the stage for a lifetime battle against the bulge.
(D) Up to 80 percent of youngsters who are fat as 5-year-olds end up fat as adults.
(E) The average child witnesses more than 15,000 commercials a year for snacks,candy, and soft drinks laden with fat, sugar, and calories.

Anyone?

Sometimes obesity is also caused by stress. Not all stressed out people are thin and slender. Most of them are obese since they eat when depressed and stressed out.

I do agree with your idea here. Obesity will be a much bigger problem. I do hope people think of this as a way to look through their diet.

Good share!