Question

47. Although Francesca has been obese for as long as she can remember, she is determined to lose excess body weight with a low-calorie diet. When dieting, Francesca is most likely to have difficulty becoming and staying thin because :

Answer 1

Francesca is likely to have difficulty becoming and staying thin due to factors such as inactivity, genetics, metabolism, and the body's set point. Obese people can struggle to lose weight due to their bodies becoming more efficient when caloric intake is reduced.

Step-by-step explanation:

When dieting, Francesca is most likely to have difficulty becoming and staying thin because of a combination of factors including inactivity, genetics, metabolism, and the body's set point (ideal weight). When a person cuts caloric intake, the body reacts as if it is starving and becomes more efficient, making it harder to lose weight. Obese people may also have difficulty in losing weight because of the adaptation of their bodies to certain weights and the fact that they often consume more calories than they burn.

Answer 2

Her body has more fat tissue than muscular tissue. Fat tissue needs fewer calories than muscular tissue to be maintained.

Explanation:

Fat does not need a high number of calories to be maintained so with a low-calorie diet her fat tissue is receiving the right amount of calories to not be modified. The diet should be paired with exercise to lose fat and build muscles, which needs more calories to be maintained. In other words, she will lose fat, build muscles and burn more calories.