In many ads for weight loss products under the product claims and in small print the following statement is made "these results are not typical". What does this say about the product being advertised?

It's pretty obvious what it means. What do you think it means?

What does it mean when the statement is made; these results are not typical, when talking about weight loss products
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What does it mean when the statement is made; these results are not typical, when talking about weight loss products