The labeling of otherwise high-calorie foods as "sugar-free," based on the replacement of all sugar by artificial sweeteners, should be prohibited by law.
Conclusion (should)
Labeling high-calorie foods as "sugar-free" should be prohibited by law.
Evidence (indicated because)
Many consumers who need to lose weight will interpret the label "sugar-free" as synonymous with "low in calories" and harm themselves by building weight-loss diets around foods labeled "sugar-free."
Manufacturers of sugar-free foods are well aware of this tendency on the part of consumers.
Evaluate
This argument proposes a Recommendation / Plan to prohibit the labeling of high-calorie foods as "sugar-free." The justification is that consumers often misinterpret "sugar-free" as "low-calorie," potentially harming their weight-loss efforts due to this misunderstanding.
To challenge this recommendation, we could look for reasons the plan might not achieve its intended goal or might have downsides not considered in the argument. Perhaps the label is crucial for other consumer needs or banning this label could lead to unintended consequences.
Goal
We need a way to defend the practice of labeling high calorie foods as sugar free.