Question

an ad for a weight - loss supplement claims that people who use the supplement will lose 20 pounds in one month. this is based on a study conducted by the company. a statement in the fine print explains that the claims have not been evaluated by the food and drug administration (fda). which concern does this advertising raise? if the supplement has not been evaluated by the fda, it might not be safe. claims that are tested by many companies might still be biased. claims that show the dramatic results of the supplement cannot produce those results. claims that are tested only by the company selling the supplement are probably false.

Explanation:

The ad's claim is based on a study conducted by the company itself. When a company tests its own product, there is a high risk of bias. The company has a vested interest (to sell the product), so the results might be manipulated or presented in a way that over - emphasizes the benefits. The FDA not evaluating the supplement is a separate concern (about safety), but the key issue here is the self - testing by the company. Claims tested only by the selling company are likely to be biased as they lack an independent review.

Answer:

Claims that are tested only by the company selling the supplement are probably false.