List the guidelines that distinguish a healthy weight-loss program from a fad/diet program

Typically, a fad diet shares some, or all, of the following characteristics:

1.Promises a quick fix.

2.Promotes 'magic' foods or combinations of foods.

3.Implies that food can change body chemistry.

4.Excludes or severely restricts food groups or nutrients, such as carbohydrates.

5.Has rigid rules that focus on weight loss

what are the possible statements?