Question

Which term best describes a fad diet?

Answer 1

A. Unsustainable. A Fad diet is a diet that promises quick weight loss through what is usually an unhealthy and unbalanced diet. Fad diets are targeted at people who want to lose weight quickly with little exercise.

Answer 2

The correct answer is Unsustainable.

These diets are taken for a short period of time to reduce the weight of the body. They are used  as a "quick fix" for the body. This is considered as the unsustainable diet because they can be consumed for a very shorter duration as it has only food to be eaten again and again, one cannot eat a single food for a longer duration of time. Though it can reduce weight or cure disease but it is unsustainable as it cannot be consumed much for a loner rime period.

example :cabbage soup