The following are characteristics of fad diets:

offer good lifestyle changes to keep the weight off
temporary results
weight loss is made easy
promise quick results

3 answers

may require drastic changes to eating habits
may be restrictive and eliminate entire food groups
may lack scientific evidence or medical supervision
may only focus on short-term weight loss instead of long-term health
may lead to nutrient deficiencies
may not provide sustainable or balanced eating habits
may result in rebound weight gain
may not address underlying psychological or emotional factors related to weight management.
which ones are correct
All of the characteristics listed above are correct for fad diets.