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SlimFast: Clinically Proven to Lose Weight and Keep It Off?

Pick up any SlimFast product and you’ll see a box with this claim:

SlimFast claim

SlimFast products

*MOUSE PRINT:

That tiny asterisk refers to a small disclosure that weight loss is clinically proven when using the product on the SlimFast diet plan.

SlimFast note

In commercials you will see the same claim — clinically proven — also being applied to their diet plan itself.

A competitor challenged those and other claims and brought their case to the National Advertising Division (NAD) of the Better Business Bureau. The NAD handed down a decision last week and on many key points ruled against SlimFast.

NAD said it was reasonable for consumers to believe that any of SlimFast’s products that displayed the “clinically proven” box had been tested by the company and shown to be effective at losing and keeping off weight.

Their decision said:

NAD noted that the advertiser provided no evidence that each SlimFast product has been individually evaluated. Further, the advertiser’s evidence was limited to studies and expert reports based on weight loss studies on discontinued SlimFast products.

NAD recommended that the company discontinue its unqualified claims of “clinically proven” and “Clinically Proven: Lose Weight & Keep It Off.”

Regarding the claim, “Clinically Proven to Lose Weight & Keep it Off When Used as Part of the SlimFast Plan,” NAD found “that the claim expressly and by implication conveys the message that the current products themselves have been clinically proven to allow consumers to lose weight and keep it off” when they had no such proof.

SlimFast vowed to appeal NAD’s decision because they feel they presented substantial scientific corroboration and testimony to support their claims.

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3 thoughts on “SlimFast: Clinically Proven to Lose Weight and Keep It Off?”

  1. “NAD noted that the advertiser provided no evidence that each SlimFast product has been individually evaluated. Further, the advertiser’s evidence was limited to studies and expert reports based on weight loss studies on discontinued SlimFast products.”

    Doesn’t get much worse than this. Not only is there a mouse print disclaimer saying it only helps you lose weight if you buy into the entire Slimfast ecosystem, but they also get admonished for relying entirely on studies done on products they don’t even sell anymore! Shame on you Slimfast, but let this be a lesson to people that the only silver bullet guaranteed way to lose weight is diet and excercise.

    • you are soo right. i am not overweight but my diet is horrible. i do landscaping so exercize is a well given.. i slowed down crap intake and have lost “too much” weight ..my pants want to fall down !

      cut soda and sugar alone with exercise and pounds come off easy

  2. I’m curious as to how many other products have been “clinically proven”.
    There was a recent article for a brain ‘improver’ that apparently had been “clinically proven’ and as told to remove that claim.

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